I want to paint my plastic wing tips with Rustoleum, what clear coat do I want to use over the painted tips for added protection?

Wing tips seldom get any fuel on 'em. I wouldn't sweat it, especially since some Rustoleum has pretty good resistance. After it's gotten a week or two of curing, that is.

I agree with da Rock, you can probably get away without having any clear coat on your wing tips as it's very unlikely you'll get exhaust residue or fuel on the wing tips. Just paint it and the the Rustoleum cure for a coupel of weeks and you'll be good to go.

Ken