yup i was an idiot and forgot the the brush i was using to clean my wheels was also being used on my dads work truck where he used that Oil Eater Spray stuff to clean his wheels. After a few months of that my wheels started looking like crap and i couldn't figure out why...well i remembered on day and now they are all cloudy like the guy said.First ... understand that the aluminum wheels have a satin finish.
Second ... they are then clear coated.
So ... basically ... you do not want to use anything that is abrasive. You have to treat them like a painted part. If you remove the clear coat ... lots of wet sanding ... then you can use a metal polish and buff. You can then re-clear them or keep them naked and deal with constant polishing. The discoloration everyone talks about is the clear coat becoming cloudy from chemicals. Again, treat them like a painted surface.