I find that usually those side skirts pickup up a ton of road grime and tar. A lot of times they take a yellow appearance. I have a product called Pro Finish that usually cleans them up pretty good. But that's just a guess! I'd have to see it to really be able to tell.
When you clayed the sideskirt, was yellow coming up? Or does it do nothing at all?
I didn't get much from claying the bottom. Going stop by next week to see what else I can do. Going see if Meg Solvent will work, I used Super Degreaser and it didn't do much.
