Originally posted by dickita15@Dec 3 2005, 12:45 AM
Hmm I used to use wd 40 as well then I tried something in a spray bottle called Greased Lightning. works like magic on the race car, might work on the trailer as well.
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castrol super clean. available in 1 gal containers at major auto parts places. i have found it works a lot better than greased lighting or simple green.

if you have waited too long before trying to clean off the dirt though, the white will be permenantly gray unless you do some serious compounding or repaint..