Quote:
Originally Posted by ever_green
I get best results (both power and mileage) with more alcohol in the tank up to 15%..... With winter E15 I can really crank up ignition timing and actually lean out mixture and make more torque, specially at low RPMs where my engine knocks with regular straight summer gas. I understand E10-15 can actually harm your mileage if your car is not tuned for it though.
Also part of the reason why your E10 mileage is worst than your E0 is because you are comparing winter time temperatures with summer time.
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Ya.....another ethanol blend booster......& again, twiddling with factory settings....& again, making up excuses when E10 mpg is lower than E0 mpg. Given standard low 87 octane low compression ratio(9:1 to 11:1) gasoline engine factory settings, adding only 10% ethanol to 100% gasoline(E10), MUST decrease mpg by 8%, 7% to 5%....if you run yearly+ long comparisons.