Thanks John. I struggle so much with the search feature, that I just starting reading all of the posts going backwards. I just found one about Wheel Offsets that you provided a link in from the tire rack site. Following is a pasage:
"Treat the finish of your wheels as you would the finish of your car. Most alloy wheels today feature a painted and/or a clearcoat finish. The best way to take care of wheels without damaging their protective finish is by frequently washing them with a mild soap and water solution. Using a tar and bug remover can prevent permanent tar staining. Periodic waxing will protect the wheel’s finish from the elements."

The site also explained what "alloy" means, etc.

I'll try the search, and if I have any questions, I'll post them. The 8 hole wheels on a 95 E420 therefore must be painted and cleacoated.

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Paul S.

2001 E430, Bourdeaux Red, Oyster interior.
79,200 miles.

1973 280SE 4.5, 170,000 miles. 568 Signal Red, Black MB Tex. "The Red Baron".