restoring rubber

[Burdar]

On something like that, I just use Westleys Bleche Wite.  It takes the grime right off.  I also used it on the hood to rad seal.  I wasn't happy with the reproduction so I cleaned up the original.  It was brown from years of dust and dirt.  The Bleche Wite took that all off and it looks new.

[70pumpkin]

I've used both 303 and Mothers but for slightly different applications and they both work well.  303 is mainly used for vinyl and rubber.  I've also used 303 on things like a bbq cover and it holds up to the elements extremely well.  Mothers Back-to-Black is used on black plastic trim on my other (non-Mopar) cars that sit outside -- it works well but over time, the sun gets to it and has to be re-applied every 3-6 months.