I have some OZ Superleggera rims I.. I just recently bought them used with about 2k miles of usage and 4 months of storage. Pretty good condition 'cept for one rim. I'm sorry I don't have any pictures yet but I will post once I get home from work today. But it seems it has some etched water stains.. I'm not quite sure if thats what it is or something else. The rims are race silver and on the sides of the spokes theres like fadded white spots. When I run my finger across its smooth. I've tried some sonus car wash soap and even p21s gel cleaner, let it soak for about 5 minutes with agitation of course. Still there.