Originally Posted by 33k!
ethanol/metanol, whatever. I think methanol is used. Ethanol is for flex fuel cars
No methanol is not used as much any more, unless you're into race cars. It'll eat up your fuel system.
Big difference between methanol and ethanol.
30% ethanol should give you same or better mileage and be as good as premium when it comes to anti-knock (ping) qualities and be cheaper, but you'd have to mix it yourself at the pump (1/3 E85 and 2/3 unleaded). 10% ethanol will probably hurt your mileage a few %.