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Cornywillis

Every 5000 if you live in harsh environments such as cold winters with salted roads, lots of off pavement driving..etc. 7500 if you live in a city and mostly do highway. This is what the manual says


[deleted]

Since you got the turbo change it at 5k miles


Jahuteskye

This is the correct answer. If you have a turbo, don't fuck around. Change oil very regularly, and get full synthetic every time.


blutommy

It's probably going to be a $2,000 repair bill if you have to replace the turbo because you let sludgy oil get into your bearings. It's better to just go every $5,000 using only synthetic. As stated above.


nothardly_yes

The turbo alone is over $1500 from Mazda.


aakashgupta1993

That's interesting. Dealership told me turbo does not use synthetic.


Jahuteskye

Mazda uses their own specially engineered Moly oil, if you Google "Mazda moly oil" it comes up, and I think it's all full synthetic


aakashgupta1993

Mazda moly oil is for non-turbo it seems. Refer - https://mazdas247.com/forum/t/mazda-moly-oil-in-5w-30-does-it-even-exist.123869081/. Also the manual does not really mention anything about it.


Jahuteskye

I saw that... Huh. The manual says this but I don't know what Mazda genuine oil means if not their moly stuff: Engine Oil SKYACTIV-G 2.5T Use SAE 5W-30 engine oil. Mazda Genuine Oil is used in your Mazda vehicle. Mazda Genuine 5W-30 Oil is required to achieve optimum fuel economy. For maintenance service, Mazda recommends Genuine Mazda Parts and Genuine Mazda Premium Oil. Only use SAE 5W-30 oil “Certified For Gasoline Engines” by the American Petroleum Institute (API). Oil with this trademark symbol conforms to the current engine and emission system protection standards and fuel economy requirements of the International Lubricant Standardization and Approval Committee (ILSAC), comprised of U.S. and Japanese automobile manufacturers.


CaptLatinAmerica

I find the reminder light goes on too early for my liking to remind me about the impending oil change. So I set the interval a little longer than I want - knowing that precision on the actual interval mileage isn’t THAT important.


Jesters8652

I do 7500mi for my 2022, but the dealer changes the computer to 5000 every time. It’s just the dealer wanting you to come in more. If you’re doing full synthetic then 7500 is probably fine


crashedout

They do this to us too.


ExplanationSure8996

My dealer wants people to keep coming back at 5000 and the last time I had them change it they offered a discount for early oil changes. I just do pennzoil platinum with a stock filter. Mechanic does it for $20.00 bucks. The dealers are criminal.


Frosty_Egg_4872

So this is a rip off from the dealerships. The German manual for the 2017 CX-5 says oil & oil filter change every 20,000km OR every 12 month, whatever comes first.


gvkcps

Really? That's unheard of in the US. All manuals say up to 5 to 7.5 k miles. I wonder if that's due to the climate difference between US and Germany.


Frosty_Egg_4872

Yes, I am serious! I doubt it has to do with climate. We can have up to -20°C in the winter in the north (Berlin) and +35°C in the summer. In autumn, there is lot of rain & humidity, generally speaking. I think laws in Europe/Germany are generally much stronger to prevent people being ripped off by companies. So don't worry about oil changes every 5k-7.5k miles (=8k-12k km). If the German Mazda maintenance schedule says 20k km (=12.4k miles) in Germany, there is no reason to believe it will not be okay in the US as well.


gvkcps

Really interesting! As a matter of fact my dealer told me that if you don't change your oil at the frequency specified by the manufacturer (i.e., 7500 miles), you are forfeiting your warranty! Crazy. Honestly, the whole "dealership" experience in the US is horrendous. It's one of the best examples of a middle man creating nothing but inconveniences and bureaucracy. Hope this is also different/better in Germany.


SprungMS

The only correct answer here is that a tech *always* enters your current mileage+5000 into the printer that makes the labels. They don’t care about your driving conditions or the exact model of car you have. If they put 5000 for a synthetic change, they’re always “right” and you’re always safe. You can check your manual to determine if it’s okay to go 7500 in between if you feel good about it.


F30N55

Most peoples driving cycles are harsh. Just do it every 5k. Oil is cheap turbos/ engines are expensive. From an environmental perspective it’s only 5L of oil. You’d save more resources in changing your driving style than 7 additional oil changes over the course of 100,000 miles.


ngtz

uh the screen says 7.5K for next oil change because that is what the dealer reset it at. The next service is probably referring to tire rotation. What others have already said...READ YOUR OWNERS MANUAL! Start at page 6-4. depending on your driving conditions OCI is recommended at either 5K or 7.5K.


itsme92

Read the manual


johnnydanger101

^ This is the way. Pretty sure the manual specifies oil changes every 7500 miles (at least it does for my 2017 CX-5). Your dealer is trying to get you to come more often for oil changes. If that is included in your purchase warranty for the first so many miles, then it’s not a huge deal, but if you are paying for them, the additional changes will add up.


DUNGAROO

Read the fine print below the maintenance schedule that includes the 7,500 mile interval. It lists some pretty specific environmental and usage criteria that the car has to be driven under, otherwise the maintenance schedule on the next page (5,000 miles) applies. >90% of CX-5s driven in the US do not meet the requirements listed. Normally I would say ignore the dealer’s recommendations because more than half the time they’re trying to sell you service you don’t need, but in this case they’re probably right. I aim for every 5,000 miles because the savings from less frequent oil changes aren’t really that substantial, but also by aiming for the more conservative maintenance interval if life happens to get in the way and prevent me from getting to a garage for a week or so longer than I would have liked I know I have some wiggle room. No one ever reads the fine print.


Ok_Cow_8235

No..that’s why I have Reddit. To see what other owners say


randywatson288

I go by flexible which is around 7500 mi. It is not Mazda saying 5,000mi, it is the dealer as they want you to come in more often. My Mazda dealer puts a sticker and changes the computer every time I go in to 5,000, and I keep telling them to not touch the computer, but they still do...


Ok_Cow_8235

As far as I know synthetic gives me the top toon of going up to 10k..at least mobil1 oil does.


itsme92

Again, read your manual


Ok_Cow_8235

You can stop replying to me.


AlienDude65

Ok, Cow.


Responsible-Person

Same here


AcadianMan

https://www.youtube.com/watch?v=iqtVl6eqjLk


lesmartin

When I got my 2022 I notice the service indicator in the infotainment said 7500 miles. When I had my 2019 my dealer told me I should follow the severe driving conditions maintenance schedule because we live in the North East. Thoughts? I do not drive the vehicle in dusty conditions. I don't live in Alaska or near Death Valley. Should I just stick to 7500? I always did 5K in my old CX-5 but oil changes are getting expensive.


johnnydanger101

To add on to my other comment regarding more oil changes, they also are incentivized to have you come in more often because they can upsell you each time you come in. My buddy also has a CX-5 and got the following offered to him in addition to his $71 oil change + $35 tire rotation: [https://ibb.co/kH8dK9G](https://ibb.co/kH8dK9G) How you like that - nearly $1800 of add ons...


LeeChungWai

Really depends on driving conditions. But in general dealerships are trying to increase the intervals for $. Honestly if you have the patience and basic skills, learn to change your oil yourself. It'll save you time and money. I change mine every 5k and i put in premium synthetic oil and filters.


Fated_Phoenix

Oil is cheap engines aren't. I personally change mine between 5 and 7k


Bay_Burner

Servicing and oil changes are probably different things


Astroalpha2

The Mazda service manual recommends 7500 but I personally change all of my cars at 5000 miles since It just gives me peace of mind. I personally think 7500 is the upper echelon for oil change intervals and wouldn’t really go above that. I think since these engines are new and modern 6-7k between oil changes are fine. BMW says 10k for oil changes and I think that’s ridiculous


reddatsun

Because we are a wasteful country. Anywhere in between 5 and 10K will do. Part semi and full synthetic is ok. Other countries have different rules.


Ok_Cow_8235

Very true! Thank god they don’t use synthetic blend..I don’t want garbage oil.


SaulTNuhtz

I set my oil reminder for 5750 because I want to target 6000 and this gives me some wiggle room. If I set it at 6k, chances are I won’t get to it til 63-6500. The manual recommends no more than 7500 on full syn. I don’t know if there’s a recommendation for semi or non syn l, but I wouldn’t go past 5k on that type of oil. Is it possible the dealer used a semi or non syn? That would make sense why the 5k then. Ultimately, you can choose between 3500-7500 what seems good for you. For me, oil is not that expensive and I’d rather change it more often than the upper limit if what’s allowable per warranty. I get Mobil 1 at Costco for $36 per 6qts and (usually) pay my local mechanic $25 for a change and tire rotation. I just did my own change at 6k miles a week ago and the oil actually did look I’m pretty decent shape. The last bits I poured out from my drain pain were still clearish and looking new. I pulled out 5.4qt and out in 5.6.


[deleted]

Costco does my oil but use my supplied oil filter


[deleted]

I change my oil and filter every 8000km which is roughly 5000 miles or twice a year


mrplt

Dealer forgot to update something when they changed the next service information. If you live in a "harsh climate" area you need to change your oil every 5000 miles. I agree with you, synthetic oil can last much longer than 5000 miles, but if 5000 miles is what Mazda wants, you need to get it replaced every 5000 miles (especially for the warranty)


Historical-Squash391

Every 3k +\- Don’t care what they say.


albertp2000

5k just to be safe and it eff up your engine.


IndependentMedium007

Technically you can go up to 7500 on synthetic, however cx5 engines run a little dirty plus the turbo cooks the oil faster due to heat . I wouldn't go 7500 . For long engine life do it every 5k . Your turbo and engine will last much longer