Also, does anyone have any tips on removing stubborn brake dust and dirt from rims?

I've been really working hard at bringing back the white Impulse rims. I've got them pretty good, but there is some serious gunk built up in the corners. I carefully tried a little brake cleaner, and that helped and didn't take any of the paint/powder coating off. I'm tempted to try some carb cleaner but I am worried it might ruin the finish. I'm thinking maybe I'll try some Easy Off oven cleaner next and see how that does.

Bart