What about this new Ethanol E-15?

Ethanol will eat your internals alive, when possible, go with E-0 (100% genuine refined dinosaurs), especially with older cars, not to mention that the molecules of alcohol are bigger than those of gasoline, which means less MPG.

Check this out:

http://www.historicvehicle.org/Commissions/Commissions/Legislative/Pure-Gas-Map