I'm going to clean up my brothers oxidized 93 Bronco soon before it gets really cold. I did a small part of the door where the paint looks like it is faded and it came out really well. Anyway, I am unsure about what type of product to use for the top. It is almost like a mildly grained trim that is painted the same color as the rest of the truck (hopefully someone knows what I am talking about). Anyway, would it be better to try to apply polish / sealant to it or a product like NL or Trim Shine. If you're still reading, thanks!