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Generally safe for all cars made after 2001 - see https://unl88.com/ for more info.
Last Updated by dirkomatic on 11-21-2023 at 07:29 AM
It's not E88. It's 88 octane, or grade, numerically between 87 (pretty standard for Regular) and 89 octane.
Don't confuse 88 octane rating with E85. E85 is (up to) 85% ethanol, the rest gasoline. Typical unleaded gasoline is up to 10% ethanol, or E10. The key difference with 88 is that it's 15% ethanol. So, 88 octane is essentially E15, not E85.
So no, you don't need a Flex Fuel designated vehicle. You may want to check your manual to see the max ethanol content recommended, but it's only going from the 10% ethanol you already run, up to 15%, something many modern vehicles will have little issue with.
The wiki is wrong and this person seems to be downvoting anyone who disagrees. This is not 85 for flex fuel. 88 octane E15 is "considered safe" for models made 2001 and later. It's fine if you disagree with it but let's not act like your word is the authority. YOU DO NOT NEED A FLEX FUEL TO RUN THIS
Our Honda CR-V and Subaru Forester both say not to use E15 in the owner's manual.
I'm fairly certain it says the warranty won't cover damage that's caused by E15. I've done a decent amount of research and that's the language most manufacturers used. However thats also for model years 2013 and prior. Any newer and I don't think there's a manufacturer who says things like this anymore. Most anything you'll find is people parroting a decade old paranoia from when this first came out. I couldn't find a mention on One person really ever losing their warranty due to E15
It's not E88. It's 88 octane, or grade, numerically between 87 (pretty standard for Regular) and 89 octane.
Don't confuse 88 octane rating with E85. E85 is (up to) 85% ethanol, the rest gasoline. Typical unleaded gasoline is up to 10% ethanol, or E10. The key difference with 88 is that it's 15% ethanol. So, 88 octane is essentially E15, not E85.
So no, you don't need a Flex Fuel designated vehicle. You may want to check your manual to see the max ethanol content recommended, but it's only going from the 10% ethanol you already run, up to 15%, something many modern vehicles will have little issue with.
Actually, it very much does require a flex fuel designation. Most owner's manuals specifically state only to use a maximum of 10% ethanol.
Now let's put the argument to rest - if you have a flex fuel vehicle, absolutely yes you can run this. It's 15% ethanol 85% gasoline. Flex fuel vehicles are designed to run any ethanol content from 0% to 85%, so 15% falls well under the 85% maximum.
Don't listen to anyone else (including the government/EPA) telling you 2001 and newer is "safe" without a flex fuel designation.
CHECK YOUR OWNER'S MANUAL for a definitive answer regarding ethanol percentage maximums. If it says 15% is okay, do it. If not, I'd avoid doing it. No, it will not spontaneously combust, but the best I can say is use at your own risk. High ethanol content LOVES tearing up fuel pump 'socks' (the filter attached directly to your fuel pump inside the tank) among other issues.
If you really are desperate to take advantage of this deal, if you have some gas cans that are empty, fill those and just add a gallon or two per tank over the next few tanks to dilute the ethanol percentage. In a 20 gallon tank, adding two gallons of E15 to the remainder E10 nets you 10.5% ethanol for that fill. Much safer.
Yes, I am a real mechanic, and yes I am a tribology and fuel geek. I feel I'm qualified to give advice on this topic.
Edit: Here is a site that lists all of the vehicles from 2011-2022 that are *supposedly* factory approved to use E15. I'd still double check your owner's manual, but this could be a second opinion of sorts.
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Don't confuse 88 octane rating with E85. E85 is (up to) 85% ethanol, the rest gasoline. Typical unleaded gasoline is up to 10% ethanol, or E10. The key difference with 88 is that it's 15% ethanol. So, 88 octane is essentially E15, not E85.
So no, you don't need a Flex Fuel designated vehicle. You may want to check your manual to see the max ethanol content recommended, but it's only going from the 10% ethanol you already run, up to 15%, something many modern vehicles will have little issue with.
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Also, are you including your cost of electricity in that hybrid (assuming it is a plug in) cost per mile?
Don't confuse 88 octane rating with E85. E85 is (up to) 85% ethanol, the rest gasoline. Typical unleaded gasoline is up to 10% ethanol, or E10. The key difference with 88 is that it's 15% ethanol. So, 88 octane is essentially E15, not E85.
So no, you don't need a Flex Fuel designated vehicle. You may want to check your manual to see the max ethanol content recommended, but it's only going from the 10% ethanol you already run, up to 15%, something many modern vehicles will have little issue with.
Now let's put the argument to rest - if you have a flex fuel vehicle, absolutely yes you can run this. It's 15% ethanol 85% gasoline. Flex fuel vehicles are designed to run any ethanol content from 0% to 85%, so 15% falls well under the 85% maximum.
Don't listen to anyone else (including the government/EPA) telling you 2001 and newer is "safe" without a flex fuel designation.
CHECK YOUR OWNER'S MANUAL for a definitive answer regarding ethanol percentage maximums. If it says 15% is okay, do it. If not, I'd avoid doing it. No, it will not spontaneously combust, but the best I can say is use at your own risk. High ethanol content LOVES tearing up fuel pump 'socks' (the filter attached directly to your fuel pump inside the tank) among other issues.
If you really are desperate to take advantage of this deal, if you have some gas cans that are empty, fill those and just add a gallon or two per tank over the next few tanks to dilute the ethanol percentage. In a 20 gallon tank, adding two gallons of E15 to the remainder E10 nets you 10.5% ethanol for that fill. Much safer.
Yes, I am a real mechanic, and yes I am a tribology and fuel geek. I feel I'm qualified to give advice on this topic.
Edit: Here is a site that lists all of the vehicles from 2011-2022 that are *supposedly* factory approved to use E15. I'd still double check your owner's manual, but this could be a second opinion of sorts.
http://www.mpgomatic.c
Looks like most cars can't run e15
https://fuelandfriction
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