Quote:
Originally Posted by Ceeto
I haven't seen gas without 10% ethanol in YEARS.
Ethanol isn't bad as such. In fact, you could mix some E85 (if you can find a station that sells it) with 93 octane and it will give you an effective higher octane and slightly less miles per gallon. and higher octane allows more boost 
Just be sure your fuel system can handle it. I think with modern BMWs we would be ok with about 3 gallons of E85 with every full tank of 93 (in our 13 gallon tank).
There are some ethanol calculators out there which can help you see how much mixing of E85 you could do and what your new effective octane rating would be. |
Do not mix E85 in a stock car. If you have a tune that can use it, then OK.