I appreciate all the feedbacks on this. I think I know what is going on now. I've been looking all over the Internet about ethanol gelling. While there is something in my tank, I don't think it is the gel from the ethanol. This substance is pure white. I will try and attach a picture that I took. This truck was my late father's project and he must be saying hello to me his Father's Day weekend. Towards the end there he made some, very let's say iffy, fixes. I think that what in the gas tank is actually some kind of caulk Maybe to seal the fuel level mechanism. Who knows. The bottom line is that there is something in the tank and I don't know what it is. There's also something that I do know what it is. Rust and lots of it. I'm sure that I have jarred some of it loose but I'm going to pull the tank and have it cleaned and coated. A friend of mine also has the same identical tank that he would give me, if I need it. It'll be a few weeks but I will keep you guys posted.
1946 1/2 ton Chevy Pickup 1954 235 cu in 3 speed on the floor
