Sadly I didn't do any before and afters. But my rims were surprisingly yellowed. Like there were big yellow stains where the spokes converged to the rims (on my RS4s) but all the spokes had a yellow film on them. Almost like a nicotine stain.Pictures please.....or it didn't happenoke:
I want to see the difference
Dogs.. (face palm).... LOLYellow? I've never had yellow stains on my wheels before. Pitting and clearcoat peel yes, but yellow? Never. What causes this?
Ahh, I see. When you guys use the term "yellow" I am assuming you are referring to discoloration in the clear coat and not the actual metal/aluminum?Dogs.. (face palm).... LOL
Newman, you don't live in a climate where they use road salt. I'm guessing that's the major culprit. I see lots of cars with yellowing alloys up in the great white north. When I only used my RS4s in the summer, they didn't yellow. I have used them two seasons through the winter (and therefore snow, salt, sand, grime and general guck) and they yellowed.
I was just guessing about the salt. I use ceramic brake pads so maybe iron from the brake disks?Iron from brake dust and snow plow blades collect and oxidize. I drive a lot on salted wintry roads and my wheels got almost bronze looking. They did clean right up. Salt may play a roll, I'm not a chemist so I would have to take someones word on it.