Try 303...

How do you clean the fender flare gasket? Mines have gotten dirty over the years.

By "gasket" I assume you mean the rubber-like trim piece that separates the flare from the fender? If so, try 303. Search on it here on TS and you'll see lots of references...

Seee-ya,

Jim.

 

I use 303 as well... their Fabric Guard product is also excellent for treating the carpets/floor mats to keep them from staining (and if you're an outdoorsman, it's a great water repellent and UV inhibitor for tents and awnings).

 

stoners tarminator

or WD-40 wiped on with a rag. Does a very good job at cleaning off the tar specks and black grundge that seems to accumulate on them. Follow with 303 protectant to keep new stuff from sticking.