[Sax]

Not sold yet, but an interesting read...something to look into a little more...

http://pesn.com/2005/03/17/6900069_Acetone/

[newgeezer]

Interesting read, yes. However, I couldn't help but be made extremely skeptical by these statements, regarding alcohol in fuel:

In my Neon, it frequently has cut the MPG in half on trips when I take pot luck at the pump.

Half the mileage? No way. My BS meter is beyond pegged.

In below-zero weather, the water and alcohol can form abrasive, icy particles that may damage fuel pumps and clog injectors.

Water and alcohol forming icy particles? I wonder if he has ever heard of the winter gasoline additive called "HEET". It's alcohol, and meant to prevent any water in your gas tank from turning into an icing problem.

FWIW.