Should have mentioned that these are aftermarket rims. Anyway, I experimented with several products, none of which worked. I then stumbled on some stuff I used to use as a kid to clean my chrome bike rims. Its called "Nev R Dull". Its a wadding that comes in a can with red/white/blue old-school type lettering. Ripped a piece off and started rubbing. Worked really well....they're not perfect and probably never will be again, but the white splotches are gone and now shine somewhat. They look perfect from 5 feet back, but if you bend over and look, you can still see surface damage. BUT...they're WAY better than before! Gonna be sure to swap them out early this fall! Thanks everyone for your help/suggestions!!

 

I've used that stuff on aluminum parts and wheels, it'll bring a great shine to bare metal, but that kinda implies that the reason you have the damage to begin with is that there's no clearcoat over the surface, at least around the damaged areas, where the oxidation may have crept under and lifted it off. If you've got to this point you might as well go at them with 1000 grit then a buffing wheel, you'll be able to get all the marks out, but they'll corrode quickly if they're ever left dirty. There are sealants that you can put on them, but I was too cheap in my younger days, or too keen to carry on spending time polishing my wheels and engine components to try them. These days I'm lazy, I have clearcoated wheels, which I wax regularly, seems to keep them sealed well enough.

 

Well gee you left a little detail out.

Not telling us they were aftermarket Kind of like not telling your doctor your a bleeder before surgery. LOL!

Can't tell you much on how to fix them right if we don't know what you really have. Many aftermarket wheels are not Clear Coated. If they are not coated regular chrome polish like Semi Chrome etc will remove it all.

Or if they were cheap chrome wheel they may be damaged for good.

When asking for help you may want to include the extra details like they are aftermarket. It would make it easier to offer the correct advice.