Let me tell you my concern. Corrosion is loss of metal. When you have two dissimilar pieces of metal touching each other, you get an exchange of electrons--this is also called a battery. Yes, a battery like the kind you have in your portable radio. A battery is basically two dissimilar metals next to each other causing a current. Anyway, when you have steel next to Aluminum wheels, you get the corrosion. I am just concerned about loss of metal on the expensive wheels, and I am concerned about getting the lug nuts off when I need to get them off. I don't care about cheap lug nuts, those are easy to get.