Fuel Additives?

[flynrider]

Spoke with my mechanic and he bought pure gas from this station right down from him, and it happens to be on this list. He put a sample in gas mason jar and let it sit for a week. In a weeks time the fuel had separated. Into what, nobody knows bye he assumed the bottom fluid was water. He knows the stations owner fairly well, small town. They had a frank discussion about it, and the owner showed his invoices of buying pure gas. he said he says for pure gas but has noway of testing if hes getting what he pays for. I'm sure their is a way to test.....so in the end the consumer never knows what they get.

Testing for alcohol is pretty easy. In the aviation world, many planes can use car gas, but are forbidden from using anything with ethanol. The 40 yr. old fuel system components are not compatible. It's always a good idea to test any car gas before putting it into the airplane tanks.

Take a clear glass jar and add a 1/2" of water. Mark the level of the water with a sharpie. Fill the rest of the jar with the suspect gas and shake it up thoroughly. Let it sit for 20 min. If the level of water is now below the line that you marked, the gas contains alcohol.

The alcohol in the fuel absorbs water and keeps it in suspension, lowering the amount of water that settles back to the bottom of the jar.