I use Valspar automotive base/clear system on my tanks tinted to the original Gas Tank Red. Around 1959 or so OMC went to a more orange color they called Cavalier Red. The Valspar product is the same finish you have on your vehicle so durability is no problem. If you don’t like the high gloss of the clear coat, a flattening agent can be added to it while retaining the protection the clear gives.
