Can isopropyl alcohol be used in gas tanks?

Answer 1

I wouldn't recommend it. I have however heard of people using alcohol to help clear up bad gasoline. If you get gas from a sleezy gas station and they are mixing a little water with their gas, or you somehow get water in your gas tank from condensation, or a dirty trick, you can mix a small amount with a full tank to burn the water out. Gas and water don't mix. However, alcohol and water mix (isopropyl alcohol is just pure alcohol mixed with water), and alcohol and gas mix. It works like a buffer. Too much alcohol can burn valves, and set off your O2 sensor. If you have something in the tank that shouldn't be there, the best thing to do is remove the tank, have it cleaned and flush the fuel lines going to the engine. Isopropyl alcohol by itself would seriously mess up the internals of an engine. To sum things up, i wouldn't do it to a car i liked.