Originally posted by brianrupnow
I am pretty shure that all production automobiles use a plain mild steel, uncoated, for their gas tanks. The only thing is, if you build your own, do a preliminary leak test with something other than gasoline. If you fill it with gas first, then find a leak, your pooched.--weld pinhole--big bang sayonara!!!!
dont know it for a fact but ive always been told there is a coating inside of a gas tank to prevent rust, because there is water in all gas tanks.