wrote in message
...
On Sun, 19 Dec 2004 04:07:21 GMT, "Jay Honeck"
wrote:

Jay, if you have any sense, you're looking for (and trying to avoid)
*ethanol*
in your gas, not isoproply.

Aren't they *both* unapproved for use in aircraft engines?

You have to do some digging, but you can find an instruction from TCM
specifying the usage of alcohol to prevent the formation of ice
crystals in aviation gasoline. Have never found a similiar statement
from Lycoming.

However, Lo-Flo Prist is approved for both. If I'm not mistaken it is
not alcohol based, but is also intended for use in aviation fuels to
prevent the formation of ice crystals.

http://www.csdinc.org/prist/faq.html

Looks like Prist is "diethylene glycol monomethyl ether".

Car antifreeze?

Paul