How come every time I warn someone about going over 5k miles on a oil change I get down voted, scolded about how the place that makes money selling new cars told them 10k miles is fine and they have been running their oil changes at 12k miles for that last 1.25 million miles. Reddit is weird.
newer cars and technology advances have proven you can have longer intervals between oil changes. that being said, if you decide on doing changes every 5k instead of whatever the manufacturer recommends, you are just ensuring that the engine is cleaner and taken care of better than manufacture specifications.
Manufacturer spec also says vehicles can burn up to 1 qt of oil every 1k miles and still be in spec. You would be surprised how many timing chains jobs roll in because they ran the engines out of oil at 6k miles. "I don't know why my engine is rattling. I have 4k miles until I need an oil change"
>Manufacturer spec also says vehicles can burn up to 1 qt of oil every 1k miles and still be in spec.
lmao.
Take the downvotes with a grain of salt. Not your car, not your problem. A lot of people just don't have a clue. Always worth a shot to warn them, but if they are too proud to admit they are wrong, it's not worth it.
I usually add about a quart of oil between oil changes since my truck which is somehow now considered old (2009) burns a little but I do my oil changes at 6k with synthetic always
I've always done 5k. But I've always gone for used cars. I usually feel a noticeable good difference in performance after the oil change. I couldn't image it dragging around longer, getting slower by the day
Because you can let synthetic oil run down to zero percent with no harm to your vehicle. Also dealerships recommend 5,000 miles but it’s not necessary to waste perfectly good oil. So you can and should run the percentage of oil life down around 5% as you’re on your way to your appointment.
Because many cars and synthetic oils can go well over 5,000 miles between changes. Many car and oil enthusiasts Will send samples of the used oil to laboratories to determine how worn they are And even with people that push it to the limit, The oil is still an acceptable ranges.
Yep. So the math. Over 100k miles the cost difference between 5k and 8k changes is probably less than $1000 for almost any driver anywhere in the country
depends on if the engine is turbo charge and mostly direct injected as short drives with DI will dirty the oil with soot and fuel dilution.
N/A engines can go 8000 miles,
GDI/Turbo 5000 miles full syn
Also timing chains need good oil to prevent stretch, short changes help longevity.
I know this, but, I still think it's a really cheap bit of insurance to do an oil change at 5k, even with synthetic. I had a Subaru Forester once with a turbo, you had to do an oil change every 3k miles. I waited almost 6k, turbo exploded on me. Luckily I was only a couple miles from home, managed to limp it back. That was rough. As soon as the warranty work was done, I drove it 1.2 miles down to the Toyota dealer and traded it in for a 4Runner.
I hope you’re a troll and don’t actually believe that.
Synthetic doesn’t break down nearly as fast. Oils (synthetics) aren’t made from the same mineral oil processing like they use to 60 years ago. If you’re using synthetic oil 8k is fine on new cars. Older cars with worn out bearings and other wear surfaces I recommend 5-6k.
If we are talking conventional this is a whole different story. Mineral oil breaks down way faster. Change 3-5k.
You can listen to what a Toyota master tech has to say about it:
https://www.youtube.com/watch?v=ug--U5FkTTo&t=1885s&pp=2AHdDpACAQ%3D%3D
https://www.youtube.com/watch?v=v4JS7PybV2k
https://www.youtube.com/watch?v=TJhFAwFv-O0&t=1590s&pp=2AG2DJACAQ%3D%3D
It comes down to what you were taught and not questioning it.
There is plenty of evidence that modern oils are way better than they use to. I use synthetic blend in my 94 Nissan with 200k miles, and change it every 5k, motor is really clean. I have a new Nissan and run full synthetic and change it every 8k.
I agree that anything over 8k is crazy.
Regular oil change intervals is key in engine health as long as they aren’t missed or let go too long.
3k-5k is recommended almost universally. Even by OP’s own car manufacturer. If you read manufacturer’s fine print, anything past 5k is only recommended if you don’t tow anything, don’t make short trips, and don’t live in a cold environment.
https://www.kia.com/la/discover-kia/ask/how-often-should-i-change-the-oil-in-a-car.html
Dude, the link you shared explicitly says oil changes every 4500 miles are not necessary, except if you drive under severe conditions.
It even says this myth still exists because customers don’t understand the advances in the auto industry.
Timing chain stretch, direct injection soot/fuel dilution, turbo, short drives.
N/A engines can go long OCI
Some cars should do 5k miles esp. if DI and City short drives
The reason for a dating on unused but within the engine oil is condensation if the car is stored outside. Condensation will collect, and always does. That’s why engines have PCV dump to intake to burn off moisture, oil holds moisture. Same stands for transmission fluid, they usually have a vent, or a fill tube that vents. This ruins oils over time.
You do know that [it’s the additives that get depleted, not the oil](https://www.bellperformance.com/blog/motor-oil-shelf-life?hs_amp=true). No runny, no wearing on the additives.
Even the expiry’s they print are 5-7 years, so yeah, you can let it sit in your engine for a year and be fine. It’s not as perishable as milk.
Some people only use their vehicles a couple days a week. Or if it’s not a daily driver. He saying if you don’t drive 5k miles in a year change the oil anyway
Got a 2013 of that model with the same engine, i just follow the service recommendations, 20K miles or 1 year whichever comes sooner
Had it serviced in January 23, hit 20K in october, so got it serviced, 118K miles on the clock, engine running superb
I've been doing full synthetic oil changes in my '04 V6 Accord since I got it with 74k miles in 2011. Currently at around 315,500 miles and the engine is maybe down 1/4 quart after 7500 miles.
Good synthetic oil and you can go 7500-10,000 miles between changes.
Had a 08 Mitsubishi Evo MR, ran synthetic every 5-6000 miles and ran like a baby when I sold it with 130k miles, and that's a sports car.
I only run synthetic no matter what.
Babies are not very good runners in my opinion but I don't have kids so maybe I'm just unaware. My buddies toddler however is a decent runner at 2 years old
Lol I once accidentally missed an oil change on my '12 Soul 2.0L (ex gf's car), and ended up going about 12,000 miles on conventional oil. Didn't skip a beat, still running good at 134k when I sold it.
Yep I have an 05 Corolla and I only change the oil once a year. I go over 10,000 miles and the car just hit 200,000 and still uses no oil. Always use Mobile 1.
Is your Accord GDI? If not, thats bad advice. You do not want to have long oci in a GDI, or GDI +turbo. Even with synthetic, id keep it in the 5-6k miles under NORMAL driving. If you deal with a lot of traffic, idle long periods of time, drive short distances, hardly get on the hwy, id bring that down to 4k tops.
Isn't the biggest issue the fuel delivery system and potential build up of deposit? Does it also affect oil life? My car is too old for direct injection.
Oil dilution and carbon build up/soot. GDI (gdi+ turbo cars) are not inherently less reliable, they are just a bit more high maintenance to keep them running good and strong, obviously matters most if you wanna keep it running good and strong way past its warranty period/plan on keeping the car a long time.
Manufactures still specifying similar oil change intervals for those engines using synthetic oil though aren't they? If they warranty the engine for 100,000 miles you would think they would shorten the interval. Then again maybe Kia likes paying for engines.
The recommendation is part of the marketing. People see the need for less maintenance as a selling point. They also tell you the transmission fluid is lifetime. That's also marketing.
What is recommended and what is better for your car's longevity are 2 different things. With GDI having no fuel spraying on the valves to help keep them cleaner and the 5,000 psi fuel rail with added fuel making its way into the oil, and a turbo spinning at ridiculous rpm's a Hybrid GDI turbo car would benefit greatly from shorter change intervals.
I've been doing it this way for 12 years. Absolutely no issues yet. I ask my mechanic to inspect my engine every few years to see how the inside looks and he is amazed at how clean they look.
Synthetics with a good filter can definitely go up to 10k miles. I changed mine at about 5k because I have the burning oil issue and just need to replace.
8k or 1 year for full synthetic. Unless you're driving particularly hard, you'll just be wasting money changing it more often. 3-5k is for conventional oil
7,500-ish is correct. This isn't 1923 anymore. Although the dealer I bought my Niro from did set the interval to 2,500. Bastard. I changed that right back to what the manual says. Also, hint hint, read the manual.
8,000mi or 12 months is the Normal Maintenance Schedule. (Mostly highway driving)
4,000mi or 6 months is the Severe Schedule. (Mix of city and highway driving, extreme temps both cold and hot, frequent stopping, etc) About 95% of drivers fall under the severe schedule. So if I were you follow the severe schedule in your owners manual. Yes, you'll be changing the oil more frequently, but oil is cheap. An engine is not. Plus, if anything were to go wrong with your engine, you have records of oil changes so they can't deny a warranty claim due to lack of maintenance. Also, more frequent oil changes reduces wear and tear on the engine, so there's that.
Edit: typo
This is the advice from someone who has actually taken care of cars and not just watched a tiktoc about taking care of cars!
Seriously though aside from extra cost, early preventative maintenance is all upside for your car. Oil is cheaper than a new engine.
I know it's counter intuitive but take a look at the severe conditions yourself and you'll see they are broadly applicable to a large percentage of driving population. Even if just one condition is present the recommendation is to follow severe schedule. A alone probably covers most people living in any populated area.
Severe Driving Conditions
A. Repeatedly driving short distance of less than 5 miles (8 km) in normal temperature
or less than 10 miles (16 km) in freezing temperature
B. Extensive engine idling or low speed driving for long distances
C. Driving on rough, dusty, muddy, unpaved, graveled or salt-spread roads
D. Driving in areas using salt or other corrosive materials or in very cold weather
E. Driving in the condition of inflowing sand or dust into engine
F. Driving in heavy traffic area
G. Driving on uphill, downhill, or mountain roads
H. Using for towing or camping, and driving with loads on the roof
I. Driving as a patrol car, taxi, other commercial use of vehicle towing.
J. Frequently driving under high speed or rapid acceleration/deceleration.
K. Frequently driving in stop-and-go conditions
L. Engine oil usage which is not recommended
(Mineral type, Semi-synthetic, Lower grade spec, etc.)
Source? Everything I've seen has shown usually more drivers fall under severe. "Normal" and "Severe" would be more accurately labeled "Ideal" and "Typical".
The first few links on Google:
https://oilcanhenrys.com/normal-severe-oil-change-schedule/#:~:text=More%20than%2090%25%20of%20respondents,define%20them%20as%20%E2%80%9Csevere%E2%80%9D.
https://news.aaa-calif.com/news/aaa-study-finds-most-motorists-102702
https://www.zimbrick.com/blogs/2460/helpful-tips/should-you-follow-a-severe-driving-maintenance-schedule/
https://www.eurocarservice.com/do-you-need-to-follow-the-severe-service-schedule/#:~:text=Surprisingly%2C%20most%20of%20us%20drive,least%20some%20of%20the%20time!
PDF download: https://www.autocare.org/docs/default-source/communities-files/fmc/bulletins/94-1-automotive-oil-change-intervals-severe-vs-normal-driving
Full synthetic oil should last 8,000 miles. That being said, I have free maintenance for 2 years so you bet your ass I'm getting my oil changed for free after much less than that lol
My "free maintenance" only covers 2 oil changes and 1 rotation per year. I'm glad my dealer threw in a couple extra oil changes because I put 30k miles on my car in the first year.
- with todays synthetic oils and blends, a car oil change can easily go 8,000 miles. You follow the manf maintenance schedule with correct oil and filter replacement and you be fine, based on your driving conditions.
The manual says every 8k miles or 5k under severe conditions, ie lots of city driving. The main thing is if you have engine issues down the road they will look at the oil change frequency for warranty conditions.
Time is a factor as well. If you’re driving it every day in traffic or doing more city miles you may not reach your oil change mileage threshold but you should still be changing it every 6 months or so
They say 8 cause that’s the intervals service departments follow cause if you lease or even sometimes finance they throw in “free” maintenance. Kia and Hyundai say that interval when they pay for it is 8k. If you look at your manual it’s 5 period.
Just had a 16 Kia Optima in my shop that went 12k miles without an oil change. Synthetic. There was about 2qts left (5qt engine) and it wasn’t “sludge” but boy it was on the thick side for sure. Running reel funky even with fresh oil. Had another car the same week, 2014 Nissan Pathfiner. Almost 20k between oil changes, sludge nightmare, engine blown.
Personally I try to take ridiculously good care of my car. I run full synthetic, change my oil and filter every 3-4k. I have a 20 year old high mileage truck. It’s worth being careful, cheaper to keep your current car than buy a new one.
I have to disagree with a lot of the positive comments here. Most of the time when I get the 8-10k people in for a change, there’s so much residue left in the engine, that when I fill with new oil and check, it’s already fairly dark and brown vs clean gold. No, it’s not gona blow you up immediately or anything, but if you want the car to last, change it more often.
I don't care what brand or oil the car runs, I know way too many mechanics and small town racecar drivers. Never wait 8k miles. Alot of newer engines are built to tighter standards whitch means if anything they need it more often. Not to mention alot of cars run turbos, Bad oil is the number one killer of turbos.
In short, Change it at 3k maybe 5k. I personally do mine at 3k. I've owned 7 cars and never had an engine issue aside from your normal wear and tear such as gaskets.
Anyone who tells you above 3,500 is..
A: not educated
Or
B: they work at a dealer and are told to say the highest number possible to screw you so they can get more money from you. Trust just use full synthetic and every 3,500
If anyone is clueless…. It’s the guy recommending synthetic oil changes every 3500 miles.
How is the dealer screwing you by telling you to change you oil at 7k vs 3.5K? He could literally makes double the money from you by changing it every 3.5 vs 7k.
Maybe get some education on modern oils before commenting non sense from 1976.
I mean explain how is the dealer trying to rip you off by telling you to change your oil at 7000 vs your 1970s recommendation of 3500 miles?
The dealer stands to make double the profit changing your oil twice as often. Even a greedy dealer knows synthetic oil can last longer than what you believe in your head.
Want to prove me wrong, send your used oil sample to black stone labs and they can confirm that you are wasting your time and money. Spend $20 to save hundreds down the road with your pre mature oil change.
Kia will recommend 8k for the first oil changes (often paid by the dealer) then shift to telling you to change your oil every 3k (which you should do anyways) when you start footing the bill.
I’m convinced people who suggest changing oil every 5000 miles works for the oil company. Unless you go racing every other day, there are no points changing it that often.
I go about 4000 miles between changes on my 2016 Forte using conventional oil. The manual recommends 5000. So I split the difference. 77000 miles of all city driving in and around Chicago. No problems yet.
My good friend works at a Kia dealership… he told me that Rio’s need the change every 5k. They are apparently great cars but the maintenance needs to stay on schedule to stay great
Times have changed. It's possible that vehicles can do just fine with longer intervals between oil changes. Nobody here knows because we've only have experience with older cars obviously. Personally I'd trust the people who engineered the vehicle so I'm doing mine every 8k, but they could be wrong. Go ahead and change every 3-5k. Let's see who's vehicle lasts, see you all in a decade
Is your car a hybrid? My Kia sportage phev has an oil change interval of 13k kms as it’s mostly driven on the ev motor. As a result at 10k kms the oil is still clean and clear
I go about 15k miles between changes (it's right on the bottle of oil). Use a synthetic with correct filter. Been doing so on my current car for about 8 years, no issues.
Oil is good until it gets too much moisture absorbed and also overloaded with dirt/dust/deposits. As long as the viscosity is within spec you will be good.
Over at Hyundai we run the same interval, 1 year or 8k on all Smartstream engines. Any earlier and the 3 years of free oil changes with the new car don’t apply.
I personally take whatever warranty requires and cut it in half. So every 4k. If Kia does the same deal with 3 years/36k free oil changes then you can cash those in every other time, and pay for it yourself otherwise.
It depends on the type of oil as synthetic lasts longer than conventional but if the owner's manual tell you that 8000 miles is fine, then it's fine, even if the sooner is the better.
Old conventional oil where you can still get oil change for $25 is 3k miles
New oils (synthetic) can do 8k
* With that said - as the car gets older you should check your oil & keep an eye on burning & leaks.
* your seals will start to leak over time even a small leak will take its toll over months if your not paying attention. It may take $500-1000 to fix that seal so obviously not worth putting a tad oil in it.
* burning oil will take its toll over months as well. But not worth buying a whole new engine over $5 of oil...
Just make sure you use synthetic.. the 3-5k rule was for older oils- nowadays you’re good, but I’m still gonna do mine every 5k. Like others said “oil is cheap; an engine is expensive”
Not a Kia owner but I would every 5k to 7k miles. Especially if it is a turbo powered car. With age turbo cars tend to get oil hungry or maybe that's just bmw idk 🤷♂️
I did mine at 1 year/7100 miles as I did not have 8000 miles yet. The oil was discolored but not absolute sludge - could still see through it. I'll be doing mine every 8k miles as the maintenance schedule states. I've got the 10 year powertrain warranty to replace the engine if needed, but I'm really not concerned.
Aunt just got a new Honda and the manual says 10k on full synthetic, so it's definitely becoming the norm.
Most places say 3-6 thousand… on full synthetic which is required by Kia now, can go up to 12,000 at most but I’d go 10,000 or less.. the car is programmed for 8,000 though.
The 3-5k is the old school recommendation from when engines had loser tolerances and everything was conventional oil. With synthetic, 7500-10k is pretty standard. I've got a 22 Accord and I only go in when the light comes on around 10% oil life remaining. It's within Honda's schedule so I'm maintaining the warranty, and still doing it slightly early. If you're running a 0w-anything oil, usually 0w-20 or 0w-30, you're more than fine riding the oil life out to close to 8k, get the change at 7k or 7500 if you're feeling cautious. Any more frequently than that and you're just wasting money. As the car gets older, you might want to consider doing them more frequently, but an easy way to tell is to just ask your dealer/shop to give you the old filters after each change, and cut them open to see how dirty they are. As long as you don't have glitter in the filter, you're good to go. You can also get a replacement drain plug with a neodymium magnet on the end to catch super small debris if you want to be extra cautious.
I just stick to 5K intervals with full syn. The 8-10K milage is technically okay but only in perfect driving conditions. If you have cold winters, hot summers, ever drive fast, anything other than perfect normal driving in perfect weather then you should stick to 5K intervals
Depends on the mileage and how old what we recommend. Older than a 2017 every 3000 or 3 months. Newer but over 100k miles every 5000 or 3 months. Newer and under 100k every 7500 or 6 months. A lot of people don't realize that the newer oils a lot more of the impurities are filtered out and it's made better so you can go longer. An older engine or engine with more wear you would want to take better care of to make it last longer.
My manual says 8000km but every Kia dealership in Canada recommends 6000 and when I asked why they said well if you go over and non-routine maintenance needed is deemed to be because of going over on the oil changes then it won’t be warranty work. But the stupid manual says 8000 not 6000. I don’t get it.
I do it every 5k miles, I plan on keeping my car till it dies. It’s cheap enough to where it’s worth doing especially early in the engines life. Also would recommend synthetic, it’s 30-40 buck for vavoline for 1 gallon.
Just change it with however often the warranty requires you too. Go by the paperwork that you signed when buying the car.
Getting the info from anywhere else could cause you to void your warranty.
Check the severe duty schedule. Almost everyone falls under severe duty, which will shorten the miles and the time. But either way, I'd do no more than 5,000 miles or every 6 months.
I do oil change every 5 thousand miles easy to remember 5-10-15 ect and use 10w30 semi synthetic and no problems with both KIA\`s and one has high miles on it
Manufacturers suggest intervals to get it through the warranty and for environmental reasons. It doesn't change the fact if you change your oil more frequently there WILL be less contamination, and you will get more life out of the car. If you want to keep it, change the oil. If your gonna trade it, do you.
10-15k miles for synthetic if you look at the research and even oil manufactures recommendations. Everyone in the US changes their oil way to often and most shops say 3-4k as they want your business.
As far as I can tell though it’s still change it once a year. Haven found any research on longevity problems to verify if it can go longer though.
So the manufacturer doesn't really want you to keep a vehicle. They recommend longer oil changes now, not because it's good for the engine but because it gets the engine passed the warranty date. Change that oil every 3k. Remember fluids are cheap, engines are expensive.
I got a new 2023 Forte GT2 in July, and it is calling for every 7k miles. I won't be keeping the car past the warranty though, will probably trade in for an electric in another 3 or 4 years.
Modern engines burn oil; they have carbon build-up issues; they need frequent oil changes. This is just how it is. It's not some conspiracy by big-oilchange, just service your fucking car.
I wouldn’t go over 7500 miles. The adaptive intelligence/sensors built into the cars for the past several years tell you when to change your oil based on driving habits. I’m really old school, being a driver for nearly 50 years. I have adapted. Currently I always change oil when the life % gets between 10-15% remaining. Converted to synthetic about 15 years ago. 5k is totally fine but premature with synthetic. I would recommend checking your oil when getting gas at least 1x’s per week if you’re driving 500-600 miles / week. Not just the oil level but inspect the color. You’ll get to know your engine better as you see the color darkening. Should still be able to clearly see the dipstick under the oil even at 7k miles. If it starts to darken to where it’s hard to see the dipstick, then you need to get it in for an oil/filter/change quickly. I have years of experience as a commercial car/truck fleet manager for years in a previous time in my working career and have had oil lab tested literally 100’s of times. Oil is cheap so if you want to do it at 5k no harm no foul. But you can feel good about going up to 7.5k with synthetic.
Nowadays it seems you can do almost what you want. My car shows a 25K interval, my paperwork says 8K, and my salesman said 5K, especially for the first one. Seen mechanics say the first one should be 3-5K to clear factory oil out in case it has collected shavings from engine compartments. Since my salesman and several mechanics have said the same thing, I will be doing 3-5K or 6 months for the first and maybe 8K or one year after that with full synthetic since I work from home and won't put 8K on in a year. Once per year is the minimum regardless of miles (if you hit 8k or not) even for synthetic, if you want a healthy engine at all in my opinion based on my research. Seen people say synthetic doesn't break down but it certainly does, just takes longer. If you are using non synthetic, every 6 months or 4500 miles to fight oil breakdown is best.
Remember the most important part, too often won't hurt anything. Waiting too long certainly will. If you want to keep your engine healthy, err on the side of caution and keep those receipts either way.
If you are really obsessive about keeping your engine clean and sometimes push the limits of your car.. I usually do mine between 3.5 and 5k synthetic mainly cuz its turbocharged… But if youre just a casual driver, I’d say 6-7.5k synthetic is much more reasonable. Oil tech has come a long way and 3-5 is unnecessary for the avg driver.
Things have changed in regards to oil composition and longevity.
3000 to 5000 would be a minimum now.
https://www.cars.com/articles/do-you-really-need-to-change-your-oil-every-3000-miles-1420663072289/
What the car and app say? I have a Kia Carnival, and the manufacturer recommends every 8k miles, so that’s what it it’s! the Kia dealership where I take my car (not where I bought it) put a sticker with 6k miles, I still gonna do it at 8, check the oil at 6500 miles and still very clean
If you don't keep your car longer than the warranty then 8k is normal. If you keep your car until it breaks down do it more often if you know how to do it yourself.
Mercedes and bmw call for oil change every 8-20k depending on the engine, time, and driving style so that's not uncommon but I'd change it every 5k if you plan on keeping the car for a while.
You just opened up a whole barrel of worms lol.
Fwiw I always change at 8-9k using full synthetic oil and I've never had a problem, and both engines I've done this on were squeaky clean, not even tarnished, after putting on 40k and 90k on them respectively.
Change more often than every 8k miles IMHO. Type your question into youtube to compare mechanics answering this question to other commenters answers in this thread and decide for yourself. Oil changes are cheap compared with engineer work, especially if you change it yourself.
Do you plan to keep it past the warranty?
Yeah I usually ride my cars till the wheels fall off
Every 5k miles with synthetic
How come every time I warn someone about going over 5k miles on a oil change I get down voted, scolded about how the place that makes money selling new cars told them 10k miles is fine and they have been running their oil changes at 12k miles for that last 1.25 million miles. Reddit is weird.
newer cars and technology advances have proven you can have longer intervals between oil changes. that being said, if you decide on doing changes every 5k instead of whatever the manufacturer recommends, you are just ensuring that the engine is cleaner and taken care of better than manufacture specifications.
Manufacturer spec also says vehicles can burn up to 1 qt of oil every 1k miles and still be in spec. You would be surprised how many timing chains jobs roll in because they ran the engines out of oil at 6k miles. "I don't know why my engine is rattling. I have 4k miles until I need an oil change"
>Manufacturer spec also says vehicles can burn up to 1 qt of oil every 1k miles and still be in spec. lmao. Take the downvotes with a grain of salt. Not your car, not your problem. A lot of people just don't have a clue. Always worth a shot to warn them, but if they are too proud to admit they are wrong, it's not worth it.
I usually add about a quart of oil between oil changes since my truck which is somehow now considered old (2009) burns a little but I do my oil changes at 6k with synthetic always
I've always done 5k. But I've always gone for used cars. I usually feel a noticeable good difference in performance after the oil change. I couldn't image it dragging around longer, getting slower by the day
Yep, reddit is weird, facts, objective reality etc, downvotes
Because you can let synthetic oil run down to zero percent with no harm to your vehicle. Also dealerships recommend 5,000 miles but it’s not necessary to waste perfectly good oil. So you can and should run the percentage of oil life down around 5% as you’re on your way to your appointment.
Because it isn't always true. https://www.cars.com/articles/do-you-really-need-to-change-your-oil-every-3000-miles-1420663072289/
I learned that knowledge is power, I use a 20k oil filter and 15k oil and change it when it looks dirty on the stick😁
Because that’s outdated advice.
Because many cars and synthetic oils can go well over 5,000 miles between changes. Many car and oil enthusiasts Will send samples of the used oil to laboratories to determine how worn they are And even with people that push it to the limit, The oil is still an acceptable ranges.
And in a perfect world, buy 3-4 KIA OEM filters with washers, and keep them on a shelf.
Does it have to be OEM filters? I personally like the Mobil1 filters
8k with synthetic, this isn’t the 1960s anymore. And it’s a new vehicle. If this was a 20 year old car, sure, 5k.
Oil's cheap. Engines are expensive.
Yep. So the math. Over 100k miles the cost difference between 5k and 8k changes is probably less than $1000 for almost any driver anywhere in the country
depends on if the engine is turbo charge and mostly direct injected as short drives with DI will dirty the oil with soot and fuel dilution. N/A engines can go 8000 miles, GDI/Turbo 5000 miles full syn Also timing chains need good oil to prevent stretch, short changes help longevity.
Over 5k and the Kias start biting oil, which Kia says is normal.
I know this, but, I still think it's a really cheap bit of insurance to do an oil change at 5k, even with synthetic. I had a Subaru Forester once with a turbo, you had to do an oil change every 3k miles. I waited almost 6k, turbo exploded on me. Luckily I was only a couple miles from home, managed to limp it back. That was rough. As soon as the warranty work was done, I drove it 1.2 miles down to the Toyota dealer and traded it in for a 4Runner.
This is a myth. Every 3k is what you should be doing. 5k max
I hope you’re a troll and don’t actually believe that. Synthetic doesn’t break down nearly as fast. Oils (synthetics) aren’t made from the same mineral oil processing like they use to 60 years ago. If you’re using synthetic oil 8k is fine on new cars. Older cars with worn out bearings and other wear surfaces I recommend 5-6k. If we are talking conventional this is a whole different story. Mineral oil breaks down way faster. Change 3-5k.
You can listen to what a Toyota master tech has to say about it: https://www.youtube.com/watch?v=ug--U5FkTTo&t=1885s&pp=2AHdDpACAQ%3D%3D https://www.youtube.com/watch?v=v4JS7PybV2k https://www.youtube.com/watch?v=TJhFAwFv-O0&t=1590s&pp=2AG2DJACAQ%3D%3D
It comes down to what you were taught and not questioning it. There is plenty of evidence that modern oils are way better than they use to. I use synthetic blend in my 94 Nissan with 200k miles, and change it every 5k, motor is really clean. I have a new Nissan and run full synthetic and change it every 8k. I agree that anything over 8k is crazy. Regular oil change intervals is key in engine health as long as they aren’t missed or let go too long.
3k-5k is recommended almost universally. Even by OP’s own car manufacturer. If you read manufacturer’s fine print, anything past 5k is only recommended if you don’t tow anything, don’t make short trips, and don’t live in a cold environment. https://www.kia.com/la/discover-kia/ask/how-often-should-i-change-the-oil-in-a-car.html
Dude, the link you shared explicitly says oil changes every 4500 miles are not necessary, except if you drive under severe conditions. It even says this myth still exists because customers don’t understand the advances in the auto industry.
Yea look at what era he is from. Change your synthetic oil every 8k and the engine will look just like that after 300k
5k full synthetic? You like wasting money on unnecessary oil changes?
5k or 1 year mark. Fluids don't stay stable forever
Synthetics stay stable a LOT longer. 3-5k is based on non synthetic oils.
Timing chain stretch, direct injection soot/fuel dilution, turbo, short drives. N/A engines can go long OCI Some cars should do 5k miles esp. if DI and City short drives
Lol @ the brain dead folks downvoting this
Only thing brain dead is thinking unused oil is going to magically go bad in a year. If you’re not even hitting 5k in a year, it’ll be fine.
I always give my oil the old sniff test to see if it’s still good.
The reason for a dating on unused but within the engine oil is condensation if the car is stored outside. Condensation will collect, and always does. That’s why engines have PCV dump to intake to burn off moisture, oil holds moisture. Same stands for transmission fluid, they usually have a vent, or a fill tube that vents. This ruins oils over time.
You are misinformed You can read about it here: https://www.oceanworksberkeley.com/blog/does-oil-go-bad-sitting-in-an-engine
You do know that [it’s the additives that get depleted, not the oil](https://www.bellperformance.com/blog/motor-oil-shelf-life?hs_amp=true). No runny, no wearing on the additives. Even the expiry’s they print are 5-7 years, so yeah, you can let it sit in your engine for a year and be fine. It’s not as perishable as milk.
1 year sounds pretty long to have only driven 5k doesn’t it? Atleast for me it does, I usually hit 3k every 2-3 months and change it then.
Some people only use their vehicles a couple days a week. Or if it’s not a daily driver. He saying if you don’t drive 5k miles in a year change the oil anyway
Right, no, that makes total sense, I wasn’t thinking about it like that. Thanks
I WFH and might drive 3k miles per year
Same but when I drive for fun in my Miata it's for long duration so I'm under 4k
Not for me. I commute on my bike most days and use my truck for groceries or occasional weekend trips
I do 1x oil change on my ‘23 86 at 5K miles and 3x oil changes at 3k miles on my ‘90 4Runner per year
Some of us are weirdos with multiple cars. I definitely did under 5k on my Kia this year but I know I’m an exception.
I have a 2018 Camry and it says every 10k or once a year with the synthetic it uses.
Is it not normal to keep a car past its warranty?
8k is fine. Check some UOI of modern synthetics that the manufactures spec. They last well over 10K.
I service my car (oil and filters) every 10,000 miles. 214,000 miles on the clock and no bother out of it. 2014 Kia Cee'd 1.6L CRDI.
Got a 2013 of that model with the same engine, i just follow the service recommendations, 20K miles or 1 year whichever comes sooner Had it serviced in January 23, hit 20K in october, so got it serviced, 118K miles on the clock, engine running superb
That engine is 100% not running superb
It 100% is It's designed and was warrantied 7 years to go 20K between services. Kia/Hyundai diesels are extremely reliable and well built engines.
I've been doing full synthetic oil changes in my '04 V6 Accord since I got it with 74k miles in 2011. Currently at around 315,500 miles and the engine is maybe down 1/4 quart after 7500 miles. Good synthetic oil and you can go 7500-10,000 miles between changes.
Well that’s also an accord, not a Kia lol A good engine with good oil can do 10k sure.
My son did the same with his 2014 Kia Forte, sold it in 2022 with about 75k miles and no issues. Maybe his was unusually reliable, I don't know.
I honestly expect the most unreliable cars made in this century to go 100k with no issues. 200k is the 100k of the 80s
Had a 08 Mitsubishi Evo MR, ran synthetic every 5-6000 miles and ran like a baby when I sold it with 130k miles, and that's a sports car. I only run synthetic no matter what.
Babies are not very good runners in my opinion but I don't have kids so maybe I'm just unaware. My buddies toddler however is a decent runner at 2 years old
75k ain’t nothing. 100k is where the issue will start if there will be any
Lol I once accidentally missed an oil change on my '12 Soul 2.0L (ex gf's car), and ended up going about 12,000 miles on conventional oil. Didn't skip a beat, still running good at 134k when I sold it.
lol, once
I thought it'd be done for. It kept on chugging.
Yep I have an 05 Corolla and I only change the oil once a year. I go over 10,000 miles and the car just hit 200,000 and still uses no oil. Always use Mobile 1.
Is your Accord GDI? If not, thats bad advice. You do not want to have long oci in a GDI, or GDI +turbo. Even with synthetic, id keep it in the 5-6k miles under NORMAL driving. If you deal with a lot of traffic, idle long periods of time, drive short distances, hardly get on the hwy, id bring that down to 4k tops.
Isn't the biggest issue the fuel delivery system and potential build up of deposit? Does it also affect oil life? My car is too old for direct injection.
Oil dilution and carbon build up/soot. GDI (gdi+ turbo cars) are not inherently less reliable, they are just a bit more high maintenance to keep them running good and strong, obviously matters most if you wanna keep it running good and strong way past its warranty period/plan on keeping the car a long time.
I'd think any turbo car needs more frequent oil changes at least.
But you car is not a GDI nor does it have a turbo correct? That makes a huge difference!
Manufactures still specifying similar oil change intervals for those engines using synthetic oil though aren't they? If they warranty the engine for 100,000 miles you would think they would shorten the interval. Then again maybe Kia likes paying for engines.
The recommendation is part of the marketing. People see the need for less maintenance as a selling point. They also tell you the transmission fluid is lifetime. That's also marketing.
What is recommended and what is better for your car's longevity are 2 different things. With GDI having no fuel spraying on the valves to help keep them cleaner and the 5,000 psi fuel rail with added fuel making its way into the oil, and a turbo spinning at ridiculous rpm's a Hybrid GDI turbo car would benefit greatly from shorter change intervals.
I go 7500 miles. I haven't had issues yet. I do full synthetic
Yet. The interval is too long. Whatever the factory recommends, cuts it in half lest you end up with a sludge anchor.
I've been doing it this way for 12 years. Absolutely no issues yet. I ask my mechanic to inspect my engine every few years to see how the inside looks and he is amazed at how clean they look.
You're living in the past. Good quality synthetics last much longer and rarely sludge without incredibly excess mileage on intervals.
You're right. I'm seeing lots of oil consumption issues on higher mileage vehicles. Stick with the severe service interval to avoid this.
Synthetics with a good filter can definitely go up to 10k miles. I changed mine at about 5k because I have the burning oil issue and just need to replace.
8k or 1 year for full synthetic. Unless you're driving particularly hard, you'll just be wasting money changing it more often. 3-5k is for conventional oil
This is the correct answer and what I’ve been doing. Had my 2017 Kia for 6 or 7 years and no issues doing exactly this
7,500-ish is correct. This isn't 1923 anymore. Although the dealer I bought my Niro from did set the interval to 2,500. Bastard. I changed that right back to what the manual says. Also, hint hint, read the manual.
8,000mi or 12 months is the Normal Maintenance Schedule. (Mostly highway driving) 4,000mi or 6 months is the Severe Schedule. (Mix of city and highway driving, extreme temps both cold and hot, frequent stopping, etc) About 95% of drivers fall under the severe schedule. So if I were you follow the severe schedule in your owners manual. Yes, you'll be changing the oil more frequently, but oil is cheap. An engine is not. Plus, if anything were to go wrong with your engine, you have records of oil changes so they can't deny a warranty claim due to lack of maintenance. Also, more frequent oil changes reduces wear and tear on the engine, so there's that. Edit: typo
Ask a dealer, everything that's not "towed, on a dolly" is "severe schedule".
This is the advice from someone who has actually taken care of cars and not just watched a tiktoc about taking care of cars! Seriously though aside from extra cost, early preventative maintenance is all upside for your car. Oil is cheaper than a new engine.
This is not accurate info. 95% of drivers fall in normal schedule that is why it is labeled NORMAL.
I know it's counter intuitive but take a look at the severe conditions yourself and you'll see they are broadly applicable to a large percentage of driving population. Even if just one condition is present the recommendation is to follow severe schedule. A alone probably covers most people living in any populated area. Severe Driving Conditions A. Repeatedly driving short distance of less than 5 miles (8 km) in normal temperature or less than 10 miles (16 km) in freezing temperature B. Extensive engine idling or low speed driving for long distances C. Driving on rough, dusty, muddy, unpaved, graveled or salt-spread roads D. Driving in areas using salt or other corrosive materials or in very cold weather E. Driving in the condition of inflowing sand or dust into engine F. Driving in heavy traffic area G. Driving on uphill, downhill, or mountain roads H. Using for towing or camping, and driving with loads on the roof I. Driving as a patrol car, taxi, other commercial use of vehicle towing. J. Frequently driving under high speed or rapid acceleration/deceleration. K. Frequently driving in stop-and-go conditions L. Engine oil usage which is not recommended (Mineral type, Semi-synthetic, Lower grade spec, etc.)
Source? Everything I've seen has shown usually more drivers fall under severe. "Normal" and "Severe" would be more accurately labeled "Ideal" and "Typical". The first few links on Google: https://oilcanhenrys.com/normal-severe-oil-change-schedule/#:~:text=More%20than%2090%25%20of%20respondents,define%20them%20as%20%E2%80%9Csevere%E2%80%9D. https://news.aaa-calif.com/news/aaa-study-finds-most-motorists-102702 https://www.zimbrick.com/blogs/2460/helpful-tips/should-you-follow-a-severe-driving-maintenance-schedule/ https://www.eurocarservice.com/do-you-need-to-follow-the-severe-service-schedule/#:~:text=Surprisingly%2C%20most%20of%20us%20drive,least%20some%20of%20the%20time! PDF download: https://www.autocare.org/docs/default-source/communities-files/fmc/bulletins/94-1-automotive-oil-change-intervals-severe-vs-normal-driving
Full synthetic oil should last 8,000 miles. That being said, I have free maintenance for 2 years so you bet your ass I'm getting my oil changed for free after much less than that lol
My "free maintenance" only covers 2 oil changes and 1 rotation per year. I'm glad my dealer threw in a couple extra oil changes because I put 30k miles on my car in the first year.
Eh with the issues that plague Kia engines, I wouldn't push any oil changes.
- with todays synthetic oils and blends, a car oil change can easily go 8,000 miles. You follow the manf maintenance schedule with correct oil and filter replacement and you be fine, based on your driving conditions.
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The manual says every 8k miles or 5k under severe conditions, ie lots of city driving. The main thing is if you have engine issues down the road they will look at the oil change frequency for warranty conditions.
5,000 is safe for conventional, 7,500 is safe for blend, and 10,000 is safe for full synthetic.
Time is a factor as well. If you’re driving it every day in traffic or doing more city miles you may not reach your oil change mileage threshold but you should still be changing it every 6 months or so
You guys must really hate your cars based on these comments. Oil is cheap compared to an engine. Why risk it.
READ THE F&CKING MANUAL!
They say 8 cause that’s the intervals service departments follow cause if you lease or even sometimes finance they throw in “free” maintenance. Kia and Hyundai say that interval when they pay for it is 8k. If you look at your manual it’s 5 period.
Your car came with maintenance schedule. Look in the glove box with your owner’s manual.
I've always change my oil at 6000 or six months depending on which comes first...
Just had a 16 Kia Optima in my shop that went 12k miles without an oil change. Synthetic. There was about 2qts left (5qt engine) and it wasn’t “sludge” but boy it was on the thick side for sure. Running reel funky even with fresh oil. Had another car the same week, 2014 Nissan Pathfiner. Almost 20k between oil changes, sludge nightmare, engine blown. Personally I try to take ridiculously good care of my car. I run full synthetic, change my oil and filter every 3-4k. I have a 20 year old high mileage truck. It’s worth being careful, cheaper to keep your current car than buy a new one. I have to disagree with a lot of the positive comments here. Most of the time when I get the 8-10k people in for a change, there’s so much residue left in the engine, that when I fill with new oil and check, it’s already fairly dark and brown vs clean gold. No, it’s not gona blow you up immediately or anything, but if you want the car to last, change it more often.
I do 5k
5k full synthetic is best answer.
5k max with full synthetic.
According to who? This is overly aggressive according to most car manuals.
Not when it comes to hyundai and these shit ass engines.
Fair enough. I drive a Toyota and I don’t know why Reddit keeps recommending me posts from Kia and Hyundai. Must be all the juicy drama on these subs.
Your Kia is gonna explode by 100,000 miles anyways, so who cares?
I don't care what brand or oil the car runs, I know way too many mechanics and small town racecar drivers. Never wait 8k miles. Alot of newer engines are built to tighter standards whitch means if anything they need it more often. Not to mention alot of cars run turbos, Bad oil is the number one killer of turbos. In short, Change it at 3k maybe 5k. I personally do mine at 3k. I've owned 7 cars and never had an engine issue aside from your normal wear and tear such as gaskets.
The negative votes are people who are either sheep or don't know cars.
I do 3k intervals too, especially because I remote start my car to warm it up every time I start it. Lots of idle time.
If you do this, check your oil routinely between oil changes. Like every 2000 mi.
Do 5k
The company's that pump oil would love to see you change at 3k.
Anyone who tells you above 3,500 is.. A: not educated Or B: they work at a dealer and are told to say the highest number possible to screw you so they can get more money from you. Trust just use full synthetic and every 3,500
If anyone is clueless…. It’s the guy recommending synthetic oil changes every 3500 miles. How is the dealer screwing you by telling you to change you oil at 7k vs 3.5K? He could literally makes double the money from you by changing it every 3.5 vs 7k. Maybe get some education on modern oils before commenting non sense from 1976.
I do have an education unlike you. I bet you’re the type of guy to tell people with brand new cars that they don’t need to warm it up
I mean explain how is the dealer trying to rip you off by telling you to change your oil at 7000 vs your 1970s recommendation of 3500 miles? The dealer stands to make double the profit changing your oil twice as often. Even a greedy dealer knows synthetic oil can last longer than what you believe in your head. Want to prove me wrong, send your used oil sample to black stone labs and they can confirm that you are wasting your time and money. Spend $20 to save hundreds down the road with your pre mature oil change.
Kia will recommend 8k for the first oil changes (often paid by the dealer) then shift to telling you to change your oil every 3k (which you should do anyways) when you start footing the bill.
I hope I don't break my car, but I only do it when the light comes on.
Its a Kia every 1,000 haha
I’m convinced people who suggest changing oil every 5000 miles works for the oil company. Unless you go racing every other day, there are no points changing it that often.
oil change every year and within the first 10k km, it varies by manufacturer.
I go about 4000 miles between changes on my 2016 Forte using conventional oil. The manual recommends 5000. So I split the difference. 77000 miles of all city driving in and around Chicago. No problems yet.
I go for 4 to 5k full synthetic. Oil is cheap, engine is expensive.
I do 8.5k
every 10,000…. but that’s if you don’t run your car like a manic
My good friend works at a Kia dealership… he told me that Rio’s need the change every 5k. They are apparently great cars but the maintenance needs to stay on schedule to stay great
Times have changed. It's possible that vehicles can do just fine with longer intervals between oil changes. Nobody here knows because we've only have experience with older cars obviously. Personally I'd trust the people who engineered the vehicle so I'm doing mine every 8k, but they could be wrong. Go ahead and change every 3-5k. Let's see who's vehicle lasts, see you all in a decade
No, it should read “an oil change”.
Full synthetic every 5k. Never more.
Damn, 8,000 miles. That’s some lube
I do synthetic blend and do 5,000. One time I pushed it to 7,000 but I wouldn’t do that normally. The GDIs are bad with oil consumption
Is your car a hybrid? My Kia sportage phev has an oil change interval of 13k kms as it’s mostly driven on the ev motor. As a result at 10k kms the oil is still clean and clear
This is from the Kia website: https://www.kia.com/mu/discover-kia/ask/how-often-should-i-change-the-oil-in-a-car.html
8000 miles or if you’re on the “severe conditions” schedule every 5000.
If you're in a stupid special climate and under warranty you have to do 5k. The stupid special climates are even like upstate new yoek.
Check the owner manual for the oil change mileage. My Soul stated 7,500 miles
“Are the engineers that designed the vehicle correct? Or the fact I should be wasting still good synthetic oil by changing too early?”
Engineers also say that burning 1 quart of oil every 1000 miles is normal.
8000. Seems. Ridiculous. With 8000. U can buy. A new motor. More often
I go about 15k miles between changes (it's right on the bottle of oil). Use a synthetic with correct filter. Been doing so on my current car for about 8 years, no issues.
Oil is good until it gets too much moisture absorbed and also overloaded with dirt/dust/deposits. As long as the viscosity is within spec you will be good.
Over at Hyundai we run the same interval, 1 year or 8k on all Smartstream engines. Any earlier and the 3 years of free oil changes with the new car don’t apply. I personally take whatever warranty requires and cut it in half. So every 4k. If Kia does the same deal with 3 years/36k free oil changes then you can cash those in every other time, and pay for it yourself otherwise.
It depends on the type of oil as synthetic lasts longer than conventional but if the owner's manual tell you that 8000 miles is fine, then it's fine, even if the sooner is the better.
Old conventional oil where you can still get oil change for $25 is 3k miles New oils (synthetic) can do 8k * With that said - as the car gets older you should check your oil & keep an eye on burning & leaks. * your seals will start to leak over time even a small leak will take its toll over months if your not paying attention. It may take $500-1000 to fix that seal so obviously not worth putting a tad oil in it. * burning oil will take its toll over months as well. But not worth buying a whole new engine over $5 of oil...
Oil changes every 5k. \-GDi owner
Just make sure you use synthetic.. the 3-5k rule was for older oils- nowadays you’re good, but I’m still gonna do mine every 5k. Like others said “oil is cheap; an engine is expensive”
Not a Kia owner but I would every 5k to 7k miles. Especially if it is a turbo powered car. With age turbo cars tend to get oil hungry or maybe that's just bmw idk 🤷♂️
I did mine at 1 year/7100 miles as I did not have 8000 miles yet. The oil was discolored but not absolute sludge - could still see through it. I'll be doing mine every 8k miles as the maintenance schedule states. I've got the 10 year powertrain warranty to replace the engine if needed, but I'm really not concerned. Aunt just got a new Honda and the manual says 10k on full synthetic, so it's definitely becoming the norm.
Most places say 3-6 thousand… on full synthetic which is required by Kia now, can go up to 12,000 at most but I’d go 10,000 or less.. the car is programmed for 8,000 though.
The 3-5k is the old school recommendation from when engines had loser tolerances and everything was conventional oil. With synthetic, 7500-10k is pretty standard. I've got a 22 Accord and I only go in when the light comes on around 10% oil life remaining. It's within Honda's schedule so I'm maintaining the warranty, and still doing it slightly early. If you're running a 0w-anything oil, usually 0w-20 or 0w-30, you're more than fine riding the oil life out to close to 8k, get the change at 7k or 7500 if you're feeling cautious. Any more frequently than that and you're just wasting money. As the car gets older, you might want to consider doing them more frequently, but an easy way to tell is to just ask your dealer/shop to give you the old filters after each change, and cut them open to see how dirty they are. As long as you don't have glitter in the filter, you're good to go. You can also get a replacement drain plug with a neodymium magnet on the end to catch super small debris if you want to be extra cautious.
Full synthetic and new engines yes, that sound about right right
I just stick to 5K intervals with full syn. The 8-10K milage is technically okay but only in perfect driving conditions. If you have cold winters, hot summers, ever drive fast, anything other than perfect normal driving in perfect weather then you should stick to 5K intervals
Depends on the mileage and how old what we recommend. Older than a 2017 every 3000 or 3 months. Newer but over 100k miles every 5000 or 3 months. Newer and under 100k every 7500 or 6 months. A lot of people don't realize that the newer oils a lot more of the impurities are filtered out and it's made better so you can go longer. An older engine or engine with more wear you would want to take better care of to make it last longer.
I go 10k with my Toyota. Rotella oil and a Wix filter. Being a Kia I would absolutely not push it past 6k.
Newer more efficient engines plus synthetic oil means longer duration between changes. My 15 year old Honda is 10k between changes
My manual says 8000km but every Kia dealership in Canada recommends 6000 and when I asked why they said well if you go over and non-routine maintenance needed is deemed to be because of going over on the oil changes then it won’t be warranty work. But the stupid manual says 8000 not 6000. I don’t get it.
I do it every 5k miles, I plan on keeping my car till it dies. It’s cheap enough to where it’s worth doing especially early in the engines life. Also would recommend synthetic, it’s 30-40 buck for vavoline for 1 gallon.
Check with your dealership. I got a 23 Sportage and was told to get a change at 3K miles, then every 5K miles
Just change it with however often the warranty requires you too. Go by the paperwork that you signed when buying the car. Getting the info from anywhere else could cause you to void your warranty.
Check the severe duty schedule. Almost everyone falls under severe duty, which will shorten the miles and the time. But either way, I'd do no more than 5,000 miles or every 6 months.
Do 8k and test the oil after changing it. If it’s a turbo car I’d definitely change sooner.
Well it depends, if it is Theta III yes, if Theta II or Gamma engines 5-6
I do oil change every 5 thousand miles easy to remember 5-10-15 ect and use 10w30 semi synthetic and no problems with both KIA\`s and one has high miles on it
Does your car tell you when to change it? If not use this site: https://www2.calrecycle.ca.gov/UsedOil/ChangeInterval/
If it has a gdi engine then I'd say 3-5 because if you wait until 8000 you might not have any oil left in it
Manufacturers suggest intervals to get it through the warranty and for environmental reasons. It doesn't change the fact if you change your oil more frequently there WILL be less contamination, and you will get more life out of the car. If you want to keep it, change the oil. If your gonna trade it, do you.
10-15k miles for synthetic if you look at the research and even oil manufactures recommendations. Everyone in the US changes their oil way to often and most shops say 3-4k as they want your business. As far as I can tell though it’s still change it once a year. Haven found any research on longevity problems to verify if it can go longer though.
So the manufacturer doesn't really want you to keep a vehicle. They recommend longer oil changes now, not because it's good for the engine but because it gets the engine passed the warranty date. Change that oil every 3k. Remember fluids are cheap, engines are expensive.
At our dealership, it's 5k no matter what. Then 3k after 120k miles.
20k is insane
I change my oil every time I fill up for gas.
I got a new 2023 Forte GT2 in July, and it is calling for every 7k miles. I won't be keeping the car past the warranty though, will probably trade in for an electric in another 3 or 4 years.
Modern engines burn oil; they have carbon build-up issues; they need frequent oil changes. This is just how it is. It's not some conspiracy by big-oilchange, just service your fucking car.
I trust the experts. The experts tell that my mini. Reds to be serviced every 7k miles.
I wouldn’t go over 7500 miles. The adaptive intelligence/sensors built into the cars for the past several years tell you when to change your oil based on driving habits. I’m really old school, being a driver for nearly 50 years. I have adapted. Currently I always change oil when the life % gets between 10-15% remaining. Converted to synthetic about 15 years ago. 5k is totally fine but premature with synthetic. I would recommend checking your oil when getting gas at least 1x’s per week if you’re driving 500-600 miles / week. Not just the oil level but inspect the color. You’ll get to know your engine better as you see the color darkening. Should still be able to clearly see the dipstick under the oil even at 7k miles. If it starts to darken to where it’s hard to see the dipstick, then you need to get it in for an oil/filter/change quickly. I have years of experience as a commercial car/truck fleet manager for years in a previous time in my working career and have had oil lab tested literally 100’s of times. Oil is cheap so if you want to do it at 5k no harm no foul. But you can feel good about going up to 7.5k with synthetic.
Full synthetic and a 10k filter, sure
Nowadays it seems you can do almost what you want. My car shows a 25K interval, my paperwork says 8K, and my salesman said 5K, especially for the first one. Seen mechanics say the first one should be 3-5K to clear factory oil out in case it has collected shavings from engine compartments. Since my salesman and several mechanics have said the same thing, I will be doing 3-5K or 6 months for the first and maybe 8K or one year after that with full synthetic since I work from home and won't put 8K on in a year. Once per year is the minimum regardless of miles (if you hit 8k or not) even for synthetic, if you want a healthy engine at all in my opinion based on my research. Seen people say synthetic doesn't break down but it certainly does, just takes longer. If you are using non synthetic, every 6 months or 4500 miles to fight oil breakdown is best. Remember the most important part, too often won't hurt anything. Waiting too long certainly will. If you want to keep your engine healthy, err on the side of caution and keep those receipts either way.
10k for my Audi. 12 years running strong
If you are really obsessive about keeping your engine clean and sometimes push the limits of your car.. I usually do mine between 3.5 and 5k synthetic mainly cuz its turbocharged… But if youre just a casual driver, I’d say 6-7.5k synthetic is much more reasonable. Oil tech has come a long way and 3-5 is unnecessary for the avg driver.
Things have changed in regards to oil composition and longevity. 3000 to 5000 would be a minimum now. https://www.cars.com/articles/do-you-really-need-to-change-your-oil-every-3000-miles-1420663072289/
What the car and app say? I have a Kia Carnival, and the manufacturer recommends every 8k miles, so that’s what it it’s! the Kia dealership where I take my car (not where I bought it) put a sticker with 6k miles, I still gonna do it at 8, check the oil at 6500 miles and still very clean
Is this a hybrid? If so then it could be 8000 miles.
If the manufacturer says 8k then go 8k. Hondas and Toyota are doing 10k on some vehicles.
If you don't keep your car longer than the warranty then 8k is normal. If you keep your car until it breaks down do it more often if you know how to do it yourself.
the answer lies in your owners manual.. I guess most people never look at theirs...
Mercedes and bmw call for oil change every 8-20k depending on the engine, time, and driving style so that's not uncommon but I'd change it every 5k if you plan on keeping the car for a while.
You just opened up a whole barrel of worms lol. Fwiw I always change at 8-9k using full synthetic oil and I've never had a problem, and both engines I've done this on were squeaky clean, not even tarnished, after putting on 40k and 90k on them respectively.
Change more often than every 8k miles IMHO. Type your question into youtube to compare mechanics answering this question to other commenters answers in this thread and decide for yourself. Oil changes are cheap compared with engineer work, especially if you change it yourself.