I have more cars with white raised lettering and smaller whitewalls though the 54 with the WWW's this worked fine also..they were dingy and stained with red Georgia clay (that stuff is nasty) when I got it, this cleaned them up good. The stuff I use is trade name B52..it is a brown soap and I just spray it on...aggitate it with a paint brush and the road grime, brake residue and stuff just rolls right off...my local Ace hardware carries it..don't look for all Ace stores to have it as this is the only one that carries it in my area...they stock Ace line but not limited to just Ace products..that is the owner's choice.