[from occupied ga]

Ethanol will get worse mileage than gasoline in an engine which is optomized for gasoline

ethanol will always get worse mileage because it doesn't have as much energy per gallon genius

[Mr. Lucky]

Pure ethanol will run in an engine with a compression ration of 19.5:1 If you tried 87 octane gasoline in the same engine, it would barely run, if at all. (the knocking is the sound of the gasoline prematurely igniting, which not only will ruin the engine in short order, but will give horrendous gas mileage until the engine blows)

Genius.