E15 : List of vehicles that accept it | Bob Is The Oil Guy

E15 : List of vehicles that accept it

Pro tip: If you want a definitive answer on what the manufacturer says is ok or not ok, go to the book literally written by the manufacturer, not an ad-filled website from an unaffiliated source. It's usually in the glove box or you can probably find it online. It's called an owner's manual and it will have your answer.

Unfortunately, somebody is going to read this list and think E15 is going to hurt their car or void their warranty or whatever because their vehicle isn't in the compiled list.

This list is missing A LOT. Like, there's not a single GM vehicle listed.

From my wife's 2021 Blazer owner's manual:
Do not use gasoline with ethanol levels greater than 15% by volume.
That means E15 is just fine.

From the owner's manual in my 2016 Colorado:
...other fuels containing more than 15% ethanol must be used only in FlexFuel vehicles.
Again, E15 is just fine.
 
No worries here. My 5.0 F150 will run E85. Unfortunately neither E85 or E0 is available anywhere near me. Everything here in CT is E10.
 
A quick google search found info about another massive omission from the list: Stellantis vehicles

Press release from 2015:
For model-year 2016, FCA US engines – except for the 8.4-liter V-10 that powers the Dodge SRT Viper – will be E15-compatible in anticipation of the fuel’s proliferation.
 
This is stated in the article .

How will I know if I can use E15?​

You will find the approved ethanol level on your vehicle’s filler cap (if it has one) or inside the filler door. The owner’s manual will show this, as well. The list of cars that use E15 is quite lengthy. Therefore, we’ve split the list into separate pages based on model year.
 
This is stated in the article .

How will I know if I can use E15?​

You will find the approved ethanol level on your vehicle’s filler cap (if it has one) or inside the filler door. The owner’s manual will show this, as well. The list of cars that use E15 is quite lengthy. Therefore, we’ve split the list into separate pages based on model year.


My filler cap says Unleaded Fuel Only.

My owners manual says no more than 10% ethanol.
 
My filler cap says Unleaded Fuel Only.

My owners manual says no more than 10% ethanol.
My 09 Camry is the same way, but it burns E15 quite well. I have not tried it in my 01 Beetle, but I know my 95 Wrangler runs terrible on ethanol, which bugs me being such a pro-ethanol guy. However, ethanol wasn't much of a mainstream thing until the early 2000's.
 
2020 Toro zero turn is pretty clear.
1650311072991.jpeg
 
My 09 Camry is the same way, but it burns E15 quite well. I have not tried it in my 01 Beetle, but I know my 95 Wrangler runs terrible on ethanol, which bugs me being such a pro-ethanol guy. However, ethanol wasn't much of a mainstream thing until the early 2000's.

GM had issued a TSB in 1985 stating that their vehicles were designed for E10 gasoline because even in the 80s it was available in the midwest.
 
GM had issued a TSB in 1985 stating that their vehicles were designed for E10 gasoline because even in the 80s it was available in the midwest.
There was also endless TSBs, Memcal PROM replacements, and various revised parts to make them run right

RVP testing, injector deposits, carbon on backs of valves causing cold start die out

I'm doing a 1983 TSB on my Grand Prix with revised main jets to deal with "fuel changes" to make newer fuels play nice with the E4ME Feedback QuadraJet 😭

I'm a dangerous man on eBay 😒
 
My cousin did an experiment with a 1 cylinder 4 stroke engine that called for no more than 10% ethanol fuel. He put a long pipe on it with a wideband O2 sensor then checked the reading with 0%, 10%, and 15% ethanol fuel. In light of the recent discussion about E15, I messaged him about that experiment, and here's the results he gave me.

WOT, 170cc, 3600 rpm.

E0 - 11.9 AFR
E10 - 12.4 AFR (tested 8.5% ethanol)
E15 - 12.7 AFR (tested 13% ethanol)

He stated it ran just fine on E15, with no misfires or other issues, for the entire 0.5 gallon tank. It leaned it out a bit, but not enough to make it a problem. That's a one-off test though. YMMV

As far as vehicles go, some are programmed pig rich from the factory. My '07 Focus was down around 11.2 at WOT in stock form with E10 fuel and 13.5 at idle and cruise. I tuned it to 12.8-13.0 at WOT and 14.8-15.0 at idle and cruise with a bump in both power and mpg. I know some Subarus are notoriously rich from the factory as well. I imagine a lot of vehicles not recommended for E15 could actually handle it okay for normal daily use. That's not me telling people to go do that, don't hold me liable, just speaking from a technical view.
 
No ethanol free available near you? I have a couple places within 30 minutes of the house I'll fill my can with 90 octane ethanol free for my outdoor power equipment.
None that I'm aware of, but it runs great on E10. I always add 1oz. of Stabil 360 to 5 gal. of gas for good measure. My OPE seem to run well on it.
 
I'm doing a 1983 TSB on my Grand Prix with revised main jets to deal with "fuel changes" to make newer fuels play nice with the E4ME Feedback QuadraJet 😭

Even 20 years ago nobody around here wanted anything to do with Quadrajet carburetors. Back then, my brother had a 1986 Camaro Z28 with a Quadrajet..I think it was running rich. A manual transmission failure (it would just grind in all gears) sent it to the junkyard.

My oldest vehicle is a 1984 Cavalier (was my dad's, he bought it new) and, after replacing the dead fuel pump and the rusty gas tank and the fuel filter (it sat undriven since 2010, I just got it running again a couple months ago), it starts and runs just fine on E10 gas. But it's throttle body injected.
 
No ethanol free available near you? I have a couple places within 30 minutes of the house I'll fill my can with 90 octane ethanol free for my outdoor power equipment.

I don't bother with ethanol-free gas in my riding mower. And I leave the gas in it over the winter. And it starts up every spring with no problem. I do keep it in my garage, it's not outside getting rained on...
 
I don't bother with ethanol-free gas in my riding mower. And I leave the gas in it over the winter. And it starts up every spring with no problem. I do keep it in my garage, it's not outside getting rained on...
OHV or flathead? I want to say flatheads don't care while OHV's might be more picky.

Not that I do anything different. Dump in some fresh fuel and go. But my mowers tend to be free, I don't mind replacing a gasket once in a while, and usually it's rust that takes them out.
 
I would love to have E15 88 available for my HEMI that specs 89.

 
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