I have a 56 CJ5 that has been sitting for quite some time. The tank has some minor surface rust above where the gas was. the bottom of the tank has a light powdery residue on it. The previous owner had gas in it and had it running but I don't want any issues since I plan to get the Jeep back on the road. i can't see half of the tank because of the baffle. I did get a quick view with a camera and the little bit I saw looked the same as the side I could see.
My question is how do I clean the tank?
Thanks in advance