Tried the Magic Eraser on my White Walls and was very impressed with the results. Jim

 

I use Clorox Soft Scrub and a stiff nylon brush. They sparkle like new when I'm done and it doesn't harm the chrome!!

 

The Westlys Bleech White works. I use a brass wire brush with it. The real secret is the scrubbing.

 

Wife gets mad at me for stealing the magicerasers everytime she buys them. They work great. I must have had oil on my fingers, I have thumb print on one side and two fingers prints on other , havent been able to find anything that will get them off yet.

 

Got a box of magic eraser of my own so the Mrs. doesn't get mad at me.
Works on my Whitemalls.

 

The real trick to Westlys is to put it on a dry tire, let it soak for a while the re-apply it, then scrub it.

 

I tried the the Mr. Clean Majic Erasers (extra power) today after reading this thread. They worked great!. Not quite as white as new, but close.
Thanks for a good tip!