Count on your gas mileage to drop. Ethanol has 66% of the energy than gasoline.
In addition, performance will be degraded as well.
"Count on your gas mileage to drop. Ethanol has 66% of the energy than gasoline."
But it has a high resistance to detonation, so it can be used with higher compression ratios, which increase power and efficiency, or higher levels of boost in turbocharged engines, increasing power but not efficiency.