For decades I've used pretty much every brand of rattle can paint then a few years ago a friend suggested I try some good single stage paint out of my gun. Ever since I've been using Nason Full Thame over self etching primer and been really happy. Sure holds up so much better and last for years. I drive my cars year around. Does cost a lot more. Around 80.00 per pint plus hardener and reducer and that is enough to do 2 motors. Big down size is that they are probably more shinny that the original paint jobs,