Quote Originally Posted by Marlin View Post
Seems if you keep it on the roof always, shouldn't you tire shine it everyone in awhile? It sits in the sun, all day, never gets used, can't be good for it.
That's why I put "Aerospace Protectant 303" on my spare on the roof, has SPF 40. and I applied it generously. It's not greasy/oily or anything, no residue at all.