Dry gas

[345 DeSoto]

Just to be safe, I use alcohol free regular. It's a few cents more/gallon, but it will NEVER absorb water like 10% regular...and the engine has noticeably more "punch".

[64studeavanti]

DryGas and other products are NOT ethanol. They are designed to hold water in suspension. In cars not winter driven they sit and frost forms inside the tank. When it thaws the water goes to the bottom of the tank and rust soon ensues. I avoid moonshine in all old cars so I put a bottle of Heet or Drygas in the tank in the fall. Adding it to crap ethanol gas is super stupid! Also agree with altair and Marvel Mystery Oil fans - love that stuff. Carb ice has nothing to do with the gas; when gas vaporizes in the carb and the temp and humidity are conducive (low temp and hi humidity) ice will form in the carb. This causes many an air plane to lose power before carb heat was routinely installed on aircraft engines. I have seen a very heavy coat of frost on my Case 400 carb in the spring of the year. Heet is methanol; Isopropyl alcohol is recommended for diesels.

IIRC, dry gas is isooropyl alcohol - I believe that is the same as rubbing alcohol.

According to the net, heet comes in 2 flavors - isopropyl and methyl.

[altair]

It works good for melting the frost off the windshield in the morning too, but it doesn't absorb it.

[Dave Bates]

Very educational,thanks