Originally Posted by TrendyTodd

I agree with Chris. Get a medium-heavy claybar. You need to remove these contaminants before protecting it.

Generally, you maintain the wheels the same way you maintain paint. I've never seen any brand, any formula of wheel wax/sealant that differs from regular wax/sealants used for paints. They don't make a difference and don't offer any longer protection. I actually use Zaino Z5, Megs 21 and Collinite 845 as wheel sealants.