Greg: Ammonium BiFluoride

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I officially made the switch to P21s Wheel Cleaner yesterday. SmartParts (the US liason) is located about 30 minutes from me here. The local mom + pop auto store carries the whole line!!! Not to mention, cheap! $13.95 for the wheel cleaner (compared to $17-20 online + shipping). The wax is $31 at this place, too. Anyways, I used it on Liz's 3-week, non-washed Saab, black wheels, and it was childs play. Spray on, agitate lightly, and rinse...100% clean minus a couple etchings. I will continue to test, but I think I have found my new go-to.