I have done that too, and it works especially well for those serious curb burns. It helps smooth out the resulting roughness as well. Paul In a message dated 1/20/2004 1:02:00 PM Eastern Standard Time, DAN300F writes: > Hi all: > > I've found that the best way for me at least to remove yellowing from >whitewalls is to use #600 wet dry sandpaper with lots of soapy water. Takes >the yellow off, removes tarnishes > and leaves a smooth finish. Cleans them right up. > > Dan Reitz > Northridge, CA >