Any reason why truckers could not use ethanol to keep air lines from freezing? I watched "ICE ROAD TRUCKERS" last season ( was that filmed in Minnesota? ) and freezing air lines was a big problem. I think they were using methanol, or some form which is poisionous. Ethanol ( in pure form ) isn't.

An "Ice Road" I was on in MN recently.
Had -40 WCF last night.
-John