Iíve only used it on my aluminum rims so far. I left brake dust on them for way too long (few months) so naturally, the brake dust ate into my rims and left a bunch of black pits. Gave this stuff a shot, and it completely got rid of them. It's been a month or two with a few washings - pits havenít randomly shown back up or anything (proving it didnít just cover them up). Completely satisfied.
Comments: Also works on faded headlights. While i know that most jeep do not have the type of headlights that get foggy on the outside, but if you use this stuff on a vehicle that does, it clears right up. My 93 mazda mx3 had yellow headlights, i could barely see at night. buffed this stuff into them and it was crystal clear. I was doubtful at first since it is a metal polish, but it does work.