Quote:
Originally Posted by ThatKidDavid
To all these people in California putting a few gallons of e85 in their M6 and feeling a difference, is this on the same map or are you switching to a 93 octane map? Will it be bad to put a couple gallons of e85 on a stock tune no mods?
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Not sure this you (or your car) would benefit from it, but at least my owners manual says that you can fill up with fuel with less than 10% ethanol. I believe E85 is 15%, but if it’s only a small portion of the whole tank should be ok...