I have an Ultra Classic with the standard polished aluminum wheels with black painted highlights in the spokes. After a season of lots of riding and a few quicky spray washes, the wheels were looking pretty bad. Now I have them cleaned up and looking better than when the bike was new. My question is, should I wax the wheels with the same McGuires wax I use on the body work, leave them dry, or is there something better to preserve them with?