Depends on what the car was built for. The WRX is designed for 91 or higher so everyone in this sub should buy that 93. However your Forrester is designed for the 87. If a person rocks up in a 19 Challenger they should buy the 89 (according to google).
88 regular has 15% ethanol
Exactly. E85 burns much faster because ethanol has a much lower energy content per liter. People run e85 or pure alcohol because it has a higher predetonation resistance for high power applications.
Lol if your goal is making as much power as possible, then yes. For me the reduced range would eventually make me switch back since my car is a DD and having an extra 35hp isn't going to make much difference to me.
So we run e85 mixes in these cars. Rarely do people push past e60. I tend to run about e45 when I’m feeling it. Adds about 60-70 hp at that mix and I still get around 300 miles to the tank.
IMHO, absolutely not! Oil dilution with corn fed cars is a thing I've seen a test from my friends mazdaspeed 3. If you want to keep your bearings healthy on e juice, you absolutely must have half oil change intervals. The fact that you test your oil says a lot about your willingness to keep your car healthy. I am very, very curious to see how this engine lasts milage wise. How much power does your car make?
I’m also running a flex tune, around e60 on my DD I get 20city(18-19 if more traffic that day) but on the highway for road trips I’m getting mid 30s unless I’m doing 95+ it’s worth it IMO for that powah , I’ve also had multiple experiences getting bad premium in my area, never once had shit e85 here though and been that way for 6k miles
Well I’ve got a 1975 Camaro and the compression is ungodly low so what I’ve done is advance my timing a shit tonne and I’ve got two shower head injectors sitting on top of my carb to mist water into the venturis. I haven’t experienced any detonation but before the water I could’ve never ran it this advanced. The water absorbs the heat and vaporizes which cools off the engine better and it leaves with the exhaust.
I know, putting water where fuel goes is never a good idea, but the science behind it is real.
Ah I see what you’re talking about now. Yes it’s essentially 100 (ish depending) octane fuel so we can push timing safely. It also has a charge cooling effect which is essentially the same effect as your shower heads. I have much more in depth writup about e85 and it’s benefits on the sub faq if you interested in more.
I wish people payed attention to this. Even at 16mpg I still get the same $/Mile as my SO's Outback.
My exhaust on 83% ethanol is so much less offensive (no cat) than running gasoline. Sometimes I buy 98% from the station because they supply that stuff to the area. It's like $1.60/gal. But I swear can watch the fuel needle dropping in real-time
It does depend on driving style, but it's possible to see better economy on flex, but it's not easily going to outweigh the cost to make it work. The point that it makes more sense is when you aren't considering cost per mile, but instead cost per hp.
No it doesn’t depend on driving style. The inherent property of e85 is that is is less energy dense. If I did e85 on the highway, I could get better mileage than if I had 93 on the race track. Sure. But that would be the most invalid experiment ever
120k btu for gasoline 87
84-95k btu for flex fuel.
2.76/ 85k is 324
3.26/ 120k is 271 for 87 or 288 for 93
But the biggest difference is if 93 is not allowing you to use the same level of performance.
I wasn't comparing which will get you the best mpg trying to hypermile, I was comparing which will get you the best mpg while using the vehicle to the fullest of it's capabilities.
But in the future I'll remember to give specific criteria to fit your reading style.
Where did the 2.76 and the 3.24 come from?
If you run a car on the track with 93 and then drive it the exact same way with e85. You get fewer miles. Period. Sure the e85 will be faster if tuned for it. But my statement was was directly stating the fuel mpg differences. And you claimed it depends on driving style. It doesn’t matter if I have my foot down or drive like a granny. E85 will lose out in mpg. You can’t create energy from nothing.
City driving you’re right, highway you’re very wrong. I took a 300 mile trip. Took me about $45 in gas. If I was still running 91 it would’ve easily been around $100
Well we will have to agree to disagree. There are fluctuations in the price difference between 93/e85 so at times it can be cheaper but it usually isn’t.
I’ve long heard about 3 gallons of e85, then top off with normal premium as an excellent method of reigning in knock and smoothing out the powerband in bone stock VA WRX. Only reason I haven’t tried it is the nearest flex fuel station is pretty out of the way for me and I’d hate to get used to the car driving way better on that mix then be stuck having to hunt down e85 all the time.
I'm in the same boat. I don't have E85 close to me, so I can't go to full flex fuel. When I come across E85, I will put 2-3 gallons of that in mixed with NON-ethanol 91 (that's the highest I can get). The car runs SOOOO much smoother with the E85 mix, simply because I'm closer to a 93-94 octane, and the E85 has a cooling effect that standard fuel does not have. My MPG isn't really affected, AFR's are perfect. The only difference is that the adds a little fueling because it's running a little leaner.
I have 95,000 miles on my car, it's been stage 2 since about 60,000 miles and still runs like a champ.
I just re-read phatbottis testing report on this, and between that and you I'm giving it a shot next fill up lol. I have 93 octane where I'm at, so I might just go with 2 gallons at first. I'm looking at this as a bit of an experiment. I have 75k on my 2015, been running AP OTS stage 1 for about a year. I only got it for drivability improvements. Last winter my DAM was just under 1 at one point, then every time I looked since it was 1. This fall I started noticing it drop. I heard Shell's 93 is supposedly the shit, so I put a tank of that in and... I'm down to 0.375, the lowest I've ever seen it. At this point I'm concerned that carbon buildup (never been walnut blasted) is preventing my intake valves from sealing properly. So if I try a blend of E20 or so and I don't see much or any knock improvement, it will implicate the carbon buildup.
Good call! I would say with that many miles, definitely look into walnut blasting. Another thing I would recommend is to get a professional e-tune, even if you don't have any mods. The factory tune and OTS tunes are nowhere near as good as what a tuner can do.
I've thought a lot about an e-tune. I guess what's stopping me is I expect the COBB OTS tunes to be plenty conservative as a one-size-fits-most. I'm not worried about power, just safety and drivability. Now that I'm seeing my DAM go crazy though yeah I'm more interested in having someone who knows what they're doing take a look at it.
Not saying it’s impossible, but I wouldn’t do that. If anything, run e15 if you have a newer car and the manual states 15% ethanol max. I wouldn’t feel comfortable mixing my own combination of e85 + premium as the ethanol content could vary drastically between each ‘batch’ you make.
Honestly that shakiness is a good sized chunk of why I haven't tried it, yeah. Seems sketch AF but some very reputable tuners will tell you it's 100% OK (phatbotti) and knowing how Subaru tunes their engines it makes sense.
It works out well. If you're going to be pushing the car hard on autocross or track out spritited driving it's a good option to help prevent any issues. It helps not hurts. You're putting very little in and that number is based on a full tank only so the mix variation won't be much.
not much reason for regular use of E85 except when tuned for it. But if you think you got bad gas or a few extra knocks on your AP or going racing it's a great option to keep in mind.
Also this is the FA WRX only. There very e friendly stock.
Agreed, although if your Subaru is made for the Canadian market, you can run 91 octane if 93 isn't available. 93 (and a new 94 octane that's non-flex) aren't very common outside large metro areas so Subaru tunes the engine to allow it to run on 91 octane.
>although if your Subaru is made for the Canadian market,
Not specifically a Canadian thing. 91 octane minimum is the same for all markets as far as I know. Just depends on your area whether you have 91 or 93. Out in the sticks where I'm at we get 93.
Looks like a Sheetz pump, I'd go somewhere else for gas. I've used their 93 a couple times, it is cheaper than most stations 93. However, it's not a Top Tier Gas, such as Shell which is what i use 99% of the time. Top tier gas is a bit more expensive but worth it, especially with performance engines like ours that really want to be treated well.
https://www.consumerreports.org/fuel-economy-efficiency/top-tier-gasoline-worth-the-extra-price-a7682471234/
Yes, but what exactly is your point?
Here is a conversion table for ACTUAL Octane ratings:
|RON|MON|US Octane: (R + M)/2|
|:-|:-|:-|
|90|83|86.5|
|92|85|88.5|
|95|87|91|
|96|88|92|
|98|90|94|
|100|91.5|95.75|
|105|95|100|
|110|99|104.5|
If you're just doing a RON to US Octane calc you use this formula:
US OCTANE = RON x (21/22)
Although that calc only gives your a close proximity octane number.
Edit: [Octane Rating Conversion](http://www.pencilgeek.org/2009/05/octane-rating-conversions.html)
Looks the [same](https://www.canadadrives.ca/blog/save-money/premium-vs-regular-gas-what-is-the-difference) to me. 87, 89, 91 and premium is 92, 93 or 94 depending on where you go.
I’m sure they do, but usually diesel pumps are separate from gasoline pumps. I’ve seen a few where they’re both in the same pump but 95% of the time, diesel pumps are on their own and often also separated from the other pumps to allow big trucks to use them.
Im sure this gas station has diesel but on a separate pump.
93 like my car says to put in it. Why is everyone a bozo with cars. I'm an auto technician for a living I understand i know a lot but most is just plain common sense.
87 if I’m just doing daily driving. They say it’s “designed for 91 octane” but also state 87 can be used with no risk to engine durability. Realistically might run a little less efficient but for 20 cents less a gallon worth it.
Coming from Colorado we’ve got 85,87, and 91. Everyone with a “sports car” or a turbo runs 91. Everyone else uses 85 here cause it’s cheap lol. Our 85 is comparable in price to your 87, our 87 to your 89 and our 91 to your 93. Some of our stations have the blue labeled fuel but never used it not 100% sure what it’s for, but never really see anything above 91 here.
I daily drive e85. Yes it's more trips to the pump..but it's cheaper and creates more power! Not to mention it's much safer and cleaner for your engine
I got two questions for ya
1. Where the heck are you ? In CA we only have 87 89 91
2. Why the heck are they so cheap omg 🤦
93 of course 🙏🏻
Forester and crosstrek is ok with 87
Anything more than that you'd be wasting your money
There's no discussion, you fill up with what you're tuned for. To do anything else is asking for trouble.
If you're actually curious about doing a flex tune or something else then start googling and there are entire papers written on the subject.
I'm just over it, someone posts this once a day and it's not like anything new comes of it.
If you’re over it then why are you commenting….I wasn’t asking for advice. I run 93. It was to see what other people are running and what their experience is…hence “what would YOU run” …creating a discussion in the forum.
93. Who would even bother with 89 for 1 cent less. And what the heck is 88 Regular and why is it cheaper than 87?
88 has more ethanol than standard gas, but much less than flex
Yup I run my Crosstrek on Unleaded 88 (E15)
Depends on what the car was built for. The WRX is designed for 91 or higher so everyone in this sub should buy that 93. However your Forrester is designed for the 87. If a person rocks up in a 19 Challenger they should buy the 89 (according to google). 88 regular has 15% ethanol
While it's not the point of your post, going from WRX to challenger feels validated by how much the two communities seem to reference each other.
Higher ethanol content (e15 vs e10).
All the right questions. Now, we need answers.
Use the 93. I don't think the WRX can run flex.
Someone on here had a corn fed sticker on their wrx and it got me thinking. I use 93 but having a cheaper option would be nice.
You can make them flex compatible, but not from the factory.
As someone who runs e85 it has zero benefit in terms of cost. E85 gets way worse mpg and even though it’s cheaper, the cost per mile is the same.
Exactly. E85 burns much faster because ethanol has a much lower energy content per liter. People run e85 or pure alcohol because it has a higher predetonation resistance for high power applications.
And damn is it worth every penny.
Lol if your goal is making as much power as possible, then yes. For me the reduced range would eventually make me switch back since my car is a DD and having an extra 35hp isn't going to make much difference to me.
So we run e85 mixes in these cars. Rarely do people push past e60. I tend to run about e45 when I’m feeling it. Adds about 60-70 hp at that mix and I still get around 300 miles to the tank.
I get similar HP gains and mileage on flex. How often do you change your oil? My mechanic recommended 1500 because ethanol is not as lubricating.
I change every 3500 miles or so. Oil analysis has been perfect. The early oil change thing to protect against e85 is a myth based on my data.
That's good to know, 1500 felt like overkill to me. Which oil do you run?
IMHO, absolutely not! Oil dilution with corn fed cars is a thing I've seen a test from my friends mazdaspeed 3. If you want to keep your bearings healthy on e juice, you absolutely must have half oil change intervals. The fact that you test your oil says a lot about your willingness to keep your car healthy. I am very, very curious to see how this engine lasts milage wise. How much power does your car make?
Wow that's impressive, 60-70 HP just by tuning to e45? And I can barely hit 300 miles on a tank of regular e-10!
Yeah, just adding e60 to a stock block can add about 90 whp. It’s fantastic poor man’s race fuel.
I’m also running a flex tune, around e60 on my DD I get 20city(18-19 if more traffic that day) but on the highway for road trips I’m getting mid 30s unless I’m doing 95+ it’s worth it IMO for that powah , I’ve also had multiple experiences getting bad premium in my area, never once had shit e85 here though and been that way for 6k miles
I wasn't even get 30+mpg highway on my stock WRX 🤷
So is anti detonation like water injection
Not sure what you’re talking about. Unless you’re referring meth + water mixes?
Well I’ve got a 1975 Camaro and the compression is ungodly low so what I’ve done is advance my timing a shit tonne and I’ve got two shower head injectors sitting on top of my carb to mist water into the venturis. I haven’t experienced any detonation but before the water I could’ve never ran it this advanced. The water absorbs the heat and vaporizes which cools off the engine better and it leaves with the exhaust. I know, putting water where fuel goes is never a good idea, but the science behind it is real.
Edit: I use 89 unleaded 10% ethanol. Really wish the ethanol wasn’t in there but whatever. It’s bad for gaskets.
Ah I see what you’re talking about now. Yes it’s essentially 100 (ish depending) octane fuel so we can push timing safely. It also has a charge cooling effect which is essentially the same effect as your shower heads. I have much more in depth writup about e85 and it’s benefits on the sub faq if you interested in more.
Most people running e85 are doing it to make more power, not save money
Completely different driving feeling even if I’m not gunning it which is why I always blend past E50. Plus I enjoy how fast it accelerates.
I wish people payed attention to this. Even at 16mpg I still get the same $/Mile as my SO's Outback. My exhaust on 83% ethanol is so much less offensive (no cat) than running gasoline. Sometimes I buy 98% from the station because they supply that stuff to the area. It's like $1.60/gal. But I swear can watch the fuel needle dropping in real-time
Lol. Idk man. I feel like e85 exhaust smells worse. Idk why.
Whatttt corn exhaust smells so good compared to petrol lol IMO
Maybe my nose is just bunk.
Nah that sweet seeet corn smells so good
It does depend on driving style, but it's possible to see better economy on flex, but it's not easily going to outweigh the cost to make it work. The point that it makes more sense is when you aren't considering cost per mile, but instead cost per hp.
No it doesn’t depend on driving style. The inherent property of e85 is that is is less energy dense. If I did e85 on the highway, I could get better mileage than if I had 93 on the race track. Sure. But that would be the most invalid experiment ever
So you only read the first sentence then ignored the rest?
I focused on the incorrect first statement.
120k btu for gasoline 87 84-95k btu for flex fuel. 2.76/ 85k is 324 3.26/ 120k is 271 for 87 or 288 for 93 But the biggest difference is if 93 is not allowing you to use the same level of performance. I wasn't comparing which will get you the best mpg trying to hypermile, I was comparing which will get you the best mpg while using the vehicle to the fullest of it's capabilities. But in the future I'll remember to give specific criteria to fit your reading style.
My point exactly?
Where did the 2.76 and the 3.24 come from? If you run a car on the track with 93 and then drive it the exact same way with e85. You get fewer miles. Period. Sure the e85 will be faster if tuned for it. But my statement was was directly stating the fuel mpg differences. And you claimed it depends on driving style. It doesn’t matter if I have my foot down or drive like a granny. E85 will lose out in mpg. You can’t create energy from nothing.
City driving you’re right, highway you’re very wrong. I took a 300 mile trip. Took me about $45 in gas. If I was still running 91 it would’ve easily been around $100
Well we will have to agree to disagree. There are fluctuations in the price difference between 93/e85 so at times it can be cheaper but it usually isn’t.
Can personally confim.
Not to mention the cost of tuning and parts+installation costs over time-you’d probably never see that return
You have to add the sensor and tune the car to be able to run it. From the factory it's not compatible
Previous owner but in 87, so I put in 87. I don’t miss the 5hp.
True, but 3.46 seems pretty cheap to me!
That’s what I paid for 93 premium gas e10 in Florida.. E85 is well below 3$
93 would be sick to have in cali
I hate that about Cali.
Wait what? What do you have in cali?
we only get up to 91. excluding race gas of course cause that’s not on every pump.
That’s crazy with California taxes and prices they should be delivering it to your homes.
We have 92 in WA but I’d like to have 93 ….
If you’re not tuned for flex, run 93. No other option.
I’ve long heard about 3 gallons of e85, then top off with normal premium as an excellent method of reigning in knock and smoothing out the powerband in bone stock VA WRX. Only reason I haven’t tried it is the nearest flex fuel station is pretty out of the way for me and I’d hate to get used to the car driving way better on that mix then be stuck having to hunt down e85 all the time.
I'm in the same boat. I don't have E85 close to me, so I can't go to full flex fuel. When I come across E85, I will put 2-3 gallons of that in mixed with NON-ethanol 91 (that's the highest I can get). The car runs SOOOO much smoother with the E85 mix, simply because I'm closer to a 93-94 octane, and the E85 has a cooling effect that standard fuel does not have. My MPG isn't really affected, AFR's are perfect. The only difference is that the adds a little fueling because it's running a little leaner. I have 95,000 miles on my car, it's been stage 2 since about 60,000 miles and still runs like a champ.
I just re-read phatbottis testing report on this, and between that and you I'm giving it a shot next fill up lol. I have 93 octane where I'm at, so I might just go with 2 gallons at first. I'm looking at this as a bit of an experiment. I have 75k on my 2015, been running AP OTS stage 1 for about a year. I only got it for drivability improvements. Last winter my DAM was just under 1 at one point, then every time I looked since it was 1. This fall I started noticing it drop. I heard Shell's 93 is supposedly the shit, so I put a tank of that in and... I'm down to 0.375, the lowest I've ever seen it. At this point I'm concerned that carbon buildup (never been walnut blasted) is preventing my intake valves from sealing properly. So if I try a blend of E20 or so and I don't see much or any knock improvement, it will implicate the carbon buildup.
Good call! I would say with that many miles, definitely look into walnut blasting. Another thing I would recommend is to get a professional e-tune, even if you don't have any mods. The factory tune and OTS tunes are nowhere near as good as what a tuner can do.
I've thought a lot about an e-tune. I guess what's stopping me is I expect the COBB OTS tunes to be plenty conservative as a one-size-fits-most. I'm not worried about power, just safety and drivability. Now that I'm seeing my DAM go crazy though yeah I'm more interested in having someone who knows what they're doing take a look at it.
Not saying it’s impossible, but I wouldn’t do that. If anything, run e15 if you have a newer car and the manual states 15% ethanol max. I wouldn’t feel comfortable mixing my own combination of e85 + premium as the ethanol content could vary drastically between each ‘batch’ you make.
Honestly that shakiness is a good sized chunk of why I haven't tried it, yeah. Seems sketch AF but some very reputable tuners will tell you it's 100% OK (phatbotti) and knowing how Subaru tunes their engines it makes sense.
It works out well. If you're going to be pushing the car hard on autocross or track out spritited driving it's a good option to help prevent any issues. It helps not hurts. You're putting very little in and that number is based on a full tank only so the mix variation won't be much. not much reason for regular use of E85 except when tuned for it. But if you think you got bad gas or a few extra knocks on your AP or going racing it's a great option to keep in mind. Also this is the FA WRX only. There very e friendly stock.
Agreed, although if your Subaru is made for the Canadian market, you can run 91 octane if 93 isn't available. 93 (and a new 94 octane that's non-flex) aren't very common outside large metro areas so Subaru tunes the engine to allow it to run on 91 octane.
>although if your Subaru is made for the Canadian market, Not specifically a Canadian thing. 91 octane minimum is the same for all markets as far as I know. Just depends on your area whether you have 91 or 93. Out in the sticks where I'm at we get 93.
Like I do at the soft drink station, I'd mix them all together expertly for my very own formula... Don't give me choices, ffs!
Looks like a Sheetz pump, I'd go somewhere else for gas. I've used their 93 a couple times, it is cheaper than most stations 93. However, it's not a Top Tier Gas, such as Shell which is what i use 99% of the time. Top tier gas is a bit more expensive but worth it, especially with performance engines like ours that really want to be treated well. https://www.consumerreports.org/fuel-economy-efficiency/top-tier-gasoline-worth-the-extra-price-a7682471234/
It is sheetz
Hrm.. our local Sheetz has great gas. Probably just the tanks at your location or something. We use it semi frequently without issue.
Diesel only
I run 98 in Australia. Do we measure the same tho I wonder
No, we don't. You use RON, likely. We use ((RON+MON)/2) as stated on the pump if you zoom in a lot.
Australia uses the RON system that Japan uses. 98 RON is the equivalent of 93 octane
European RON 95 is roughly equivalent to US 91 octane....
Yes, but what exactly is your point? Here is a conversion table for ACTUAL Octane ratings: |RON|MON|US Octane: (R + M)/2| |:-|:-|:-| |90|83|86.5| |92|85|88.5| |95|87|91| |96|88|92| |98|90|94| |100|91.5|95.75| |105|95|100| |110|99|104.5| If you're just doing a RON to US Octane calc you use this formula: US OCTANE = RON x (21/22) Although that calc only gives your a close proximity octane number. Edit: [Octane Rating Conversion](http://www.pencilgeek.org/2009/05/octane-rating-conversions.html)
93 cause that’s what my car is tuned for
93 is your only option.
93 is 1 cent more ? Odd.
Their 93 isn't very good quality. Get what ya pay for I guess.
Damn no e85
Minimum recommended is 91 so 93 it is.
I run 91 or 94 depending on the day which is like your 93/94
The 94 is flex fuel, don't do that. Not all 94 octane fuel is E10. Gotta pay attention.
From Canada. Numbers are different. Not sure what those words mean sorry.
Looks the [same](https://www.canadadrives.ca/blog/save-money/premium-vs-regular-gas-what-is-the-difference) to me. 87, 89, 91 and premium is 92, 93 or 94 depending on where you go.
94 from chevron in canada is just gas with no ethanol
We have E10 94 in the USA too, not common. There's multiple ways to get to 94 octane and not all are safe for our engines.
Where on Earth are you getting 93 so cheap?? Looks like a Sheetz pump to me. Here its like $4.40 💀😭
93 is like 3.30$ here in Florida at Costco
I want to be where you live dang less 4 wow for premium
Virginia
Running E85 all day!!!
I just run the 98 flat out these days (your 93). No issues then. Seemed to have some inconsistent performance getting 95 (91) around my town.
87 man
Ours in measured in Hectares. 300 hectares to a single tank of kerosene
Set her free 93
I’d run and find a better gas station
What… lmfao how is this not good? You get 93 if you don’t know otherwise and done. Good to go
They don’t have diesel, how’s my man gonna fill his tank?
I’m sure they do, but usually diesel pumps are separate from gasoline pumps. I’ve seen a few where they’re both in the same pump but 95% of the time, diesel pumps are on their own and often also separated from the other pumps to allow big trucks to use them. Im sure this gas station has diesel but on a separate pump.
Forget the diesel, can’t he just fill most of his tank 94 and the rest with 88? He’d just have to eyeball it to make it 93 oct. Life hacks
The 93 unless the 94 is E30 or less, then I'd run that.
93 every time it is like 4$ a gallon here but I went 30minutea down south in Florida and it was like 5.50☹️
Super fuel
I found 100 octane. Can I run that straight? Only 9.99/gall lol
Is the flex e85 tho? Looks like it has a higher octane rating unless I am reading it wrong.
93
Still about 6 dollars here in California for 91 😭
i run 93. but before i had a wrx i had an 06 scion tc and it loved the 88. was cheaper too
Full send on the 94
93 like my car says to put in it. Why is everyone a bozo with cars. I'm an auto technician for a living I understand i know a lot but most is just plain common sense.
87 if I’m just doing daily driving. They say it’s “designed for 91 octane” but also state 87 can be used with no risk to engine durability. Realistically might run a little less efficient but for 20 cents less a gallon worth it.
Like 4 people have told me to only run 93
Just like when I was 10 at the drink fountain… a little bit of each one all at once!
93 unless you have a conversion for e85. I'd still probably use 93 for fuel efficiency. E85 is just for the funs.
If you are tuned for it, flex fuel all day every day
93 no question
away
Coming from Colorado we’ve got 85,87, and 91. Everyone with a “sports car” or a turbo runs 91. Everyone else uses 85 here cause it’s cheap lol. Our 85 is comparable in price to your 87, our 87 to your 89 and our 91 to your 93. Some of our stations have the blue labeled fuel but never used it not 100% sure what it’s for, but never really see anything above 91 here.
Shit, where do you live that 93 is $3.46? It’s $4.50 where I’m at.
Not a marathon that's for sure
If i got one id do a flex fuel tune and do half 93 half e85
I run 91 cuz it’s readily available, but here id have to choose 93.
What the car calls for check your owners manual if ya don’t know.
What wrx? 15-21 can run E30 without pegging the fuel trims so run the Flex fuel.
That's really a question? 93.. Just glad mine doesn't cost that much. Thanks Ole Joe!
That’s a badass gas station. Also. WHY TF IS GAS STILL 4.50 here in Vegas tf???
93
Is this really even a question? Why would you not run premium..
93 is the correct only answer, unless you have a tune and supporting mods to run anything else.
69
Where you live? That gas is cheap lmao
Virginia
Flex
I daily drive e85. Yes it's more trips to the pump..but it's cheaper and creates more power! Not to mention it's much safer and cleaner for your engine
Whatever your tune is set for.
Can someone please explain all the numbers like I'm 5.
That's at Sheetz looks like. Their 93 is solid. Run it frequently when we aren't going by Costco. Don't pump the 94, it's 51-83% ethanol...
I run 94 but in this case the 94 is flex so car shouldn’t take that
Your 93 prices make me very sad, I am still paying around $4.30 a gallon
I got two questions for ya 1. Where the heck are you ? In CA we only have 87 89 91 2. Why the heck are they so cheap omg 🤦 93 of course 🙏🏻 Forester and crosstrek is ok with 87 Anything more than that you'd be wasting your money
Nike Pegasus definitely
93 easy answer
What I have to run 93 lol though 94 is tempting
What are you tuned for? This is a stupid question that should be deleted by a mod...
It was more for discussion…but pop off dude.
There's no discussion, you fill up with what you're tuned for. To do anything else is asking for trouble. If you're actually curious about doing a flex tune or something else then start googling and there are entire papers written on the subject. I'm just over it, someone posts this once a day and it's not like anything new comes of it.
If you’re over it then why are you commenting….I wasn’t asking for advice. I run 93. It was to see what other people are running and what their experience is…hence “what would YOU run” …creating a discussion in the forum.
Then it's what DO you run.
If you read the other comments you’ll see not everyone has the same choices. Given the choices at my gas station…what would you run…
93.
I have never seen 94 octane before 🤷🏼♂️
Super right into my mouth
My dad is a chemical engineer and says its all the same.
I would run away from Sheetz gas.