[Huz-Z]

I've been using the BMW wheel cleaner, which as far as I can tell, is identical to Sonax. The stuff sprays on green and turns pruple - red as it reacts with the brake dust. I've been washing my car weekly, sometimes for no other reason than to keep brake dust off the 108 rims. I usually try to wash the inside of the rim as best I can and the back of the spokes. Its hard to do on the front wheels owing to the bigger brake rotor, even with a good wheel brush. But the BMW Wheel Wax certainly sounds intriguing. I'll pick up some and give it a try.