I recently purchased a new 2013 GT, and I couldn't be happier! I'm doing everything I can to keep it looking nice while also maintaining the quality. I have been using Meguiar's Hot Rims All-Wheel Cleaner until I found out my black rims are actually aluminum. I know the majority of the wheel is painted, but does anyone know if the metallic parts (the aluminum) are coated? Ford's official description for the wheels is "19" Machined Aluminum with Black-Painted Windows." I've attached a picture. I've switched to something less harsh(Meg's Aluminum wheel cleaner) until I find out for sure if the aluminum parts are coated, but I really like the All-Wheel cleaner, so I would like to continue using it if I can. And no, All-Wheel doesn't actually mean all. It's too harsh for non-coated aluminum.