Can anyone tell me the best way to deal with a 64 year old gas tank that has surface rust but is sound. I remember a few years ago watching a guy throw an absolute fit because his car was docked points at a BCA judged meet for having a black painted gas tank. Obviously my tank started out galvanized. Is there a process to restore a tank to its original appearance? Should I just clean it up somehow the best I can and leave it? The last car I had (53 Buick) I had the tank "renu'd" which is a costly process and even then they coat it black! How can you do something without losing points? Thanks.