If you can get just peanut oil, that works even better then peanut butter. I've used PB on the paint itself before to remove some left over adhesive, works just fine, although it may take a few tries to get evverything off.
Mother's Back-To-Black, it's made for getting wax residue off. The stuff is actually white and is fine to use on the gray trim. Puts a nice shine on as well.