Everytime I wax my car, which is about once a month, I usually wax my wheels as well. I have a Mercedes and they are famous for brake dust. I noticed that if the wax, the brake dust came ooff easier at the next wash.
My wheels are about $5,000 and I am trying to find the best way to store them. There is no heat in my garage and frankly, I do not know if it is considered dry or moist.