Why you shouldn't use E85 fuel unless it's at least 25% cheaper than regular fuel.
A lot of new GM Cars run on E85 fuel (made mostly from ethanol, a byproduct of corn), gasoline/petrol, or a blend of the two. What they hide all the way at the bottom of their FAQ is that you’ll get 25% less miles-per-gallon on E85, versus regular gas.
So, essentially it’s better for the environment, and converts into more horsepower/torque, but it ain’t worth it until that price goes at least 25% less than what you’d be paying for normally. Watch out!