mark77 Posted May 15, 2019 Report Share Posted May 15, 2019 Hello everyone, A few weeks ago, I accidentally filled up my 850 turbo with 88 octane E15. I noticed a slight increase in power and also got about 30 more miles out of that tank of gas than I normally do. Went back to the normal 91 octane E10 and my mileage went back mobdro https://pnrstatus.vip/ https://sarkariresult.onl/ down to where it normally was. So I tried it again, and once again I got about 2mpg better on the E15. Everything I have read about ethanol suggests I should get worse mileage with higher ethanol mixture. What gives? And most importantly, Should I be worried about it damaging my engine? I have read that E85 will make more power, but requires a special tune since it is similar to high octane fuel. Is there a specific point where too much ethanol becomes a problem? This same station also sells E30, curious how that would work.... Thank you! Link to comment Share on other sites More sharing options...
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