Originally Posted by flea333
I used this on my 328 stock rims cause they're such a PITA to clean. It did help reduce brake dust buildup for about 3 weeks. I stopped using it cause the can lasted only a few times and the added time to spray on at all the angles.
biggest proof point for me was when I stopped using it and noticed how dirty the wheels would get again. cleaning that takes a lot longer and gets a lot harder and dirtier to do. you should check out the economy sized can for a couple more dollars, actually a decent deal.