In article .com,
Gary wrote:

Most if not all Mogas today has Methanol in it as a replacement for
the oxygenation agent MTBE. Gas pumps are not typically labled as to
alcohol content. Both Petersen and EAA autogas STC's are not valid
with autofuels containing alcohol. At a recent IA seminar held by the
FAA we were reminded that even with an autogas STC if an airplane is
operated using a fuel containing any alcohol that the airplane would
be considered by them to be "unairworthy". Unairworthy to the FAA
also means uninsured to most aviation underwriters. So you won't have
a problem until you have a problem! Methanol is hydroscopic which
means it holds water. This water will, over time, rust the steel
parts in the fuel system.

Gary Plewa
Gary,

You are confusing methanol with ethanol.

Neither is approved for aviation fuel usage.

Both are hydroscopic -- methanol more than ethanol.

Both have materials incompatibilities.

Both increase fuel consumption and reduce power.

Ethanol is the alcohol of choice (Per Archer-Daniels Midland) for
gasohol. It is also the stuff you drink. Methanol will destroy your eyes.