For many years I used it on my painted, clear coated yellow wheels and in the barrels too. Big improvement over Carnauba Wax that made the brake dust stick. Now I use DP Wheel Glaze. Even better.
I have a 12 year old Corvette with lots of vinyl graphics and some decals. In the past I have used only Griot's wax (paste and Best of Show). I plan on switching to Wolfgang DGPS then topping with either Fusion or SigII. Will any of these harm the graphics (they still look new).