Originally Posted by
mimalmo
I see a big difference in my average mileage (I monitor tank average) when I use ethanol-free premium. Ethanol is not only bad for our fuel systems, but it also contains less energy. Gallon for gallon, ethanol contains about 34% less energy than pure gasoline.
That is not entirely true, In the way your and my engine burn ethanol mixed gas that is correct, however ethanol allows much higher compression ratios than regular fuel and as a result a proper engine may extract a lot more out of ethanol mixed fuel. Don't get me wrong I oppose ethanol mixed fuels as much as the next guy.
2004 ZHP * IMOLAROT II * OEM Clears * ///M Strut * CoolantSnitch