I'm not going to seal it. I have read on the motorcycle sites that if you havn't cleaned it and prepped it perfectly the sealer can get pockets in it and the pockets will rust. Because the tank is galvanized with patches where the zinc is missing I'm afraid I'd develop the pockets. I'm going to keep thee tank full, and I've put two cow magnets inside the tank near the petcock. They should grab any floating rust particles that I might not have gotten.
