Hi,

I bought a set of reproduction Polyglas raised white letter tires last year and the white letters were nice and bright. I removed the tires and rims for the winter and have been sitting in my garage since this past weekend. No exposure to sun, painting, etc., just sat in the corner of the garage.

Now the white letters have taken on a light yellow/brown appearance. What would anyone suggest using to clean the letters to bring them back to white. I have tried dishwashing soap and car wash soap but neither helped.

Thanks,

Mike.