I'm a way big rookie!
Chris, Please check out those sites! Please don't take my word as anything more than " I tried this stuff & it worked for me". I never had alum wheels either. Last vette was a 72 w/ center caps & trim rings on painted steel rims. So my 90 is greek to me. The Zymol kit has a ph balanced wash + a easy to use protectant that can be layered. I picked it because my wheels were clean on the outside, no brake dust, etc. The inside was a mess, brake dust & grease & road dirt, etc. The cleaner got off all the dust & dirt by repeat apps & agitating with the brush. It didn't remove the brake dust, I think? I don't know if the backside of the Fac wheels were clearcoated? I'm figuring they are so I figure the roughness I feel is embeded brake dust in the CC. The book says claybar for that & re-wash till clean. Just be careful that you don't leave the cleaner on too long. I short timed it just to be sure I wouldn't damage anything. I figured the cleaner concentrate is cheaper than 90 saw blades for a ZR-1!! Good luck with the new toy! Save the wave & keep the shiney side up! Tom