Bed Rails, Cleaning them?

If this sounds like a stupid question, I'm sorry! Okay, I'm actually not, but I need suggestions!

I've been having a heck of a time cleaning up the bed rail caps, especially the pieces that overhand the left & right sides. I've tried regular car soap w/ sponge, Castrol GTX cleaner, Armorall (Yea, big mistake), etc..
Every time they look dull, cloudy or still dirty. And Ideas???

Edit: And Isocoee, I didn't leave you bad rep!

 

Are the rails black? If so, Maybe some bumper black will do the trick.

 

What's wrong with Armor All? I use it an all exterior black plastic and looks great.

 

you may want to try some "mothers back to black" and see if that helps.

 

It just doesn't look uniform with all the ridges on the bed caps, attracts dust and slippery as hell when you step on it!!

I think I'm going to try that Mothers "back to black".
Thanks Tacomaman

 

no prob man.....let us know how it turns out!!!

 

I use a product called Tonno Tonic that is sold by Extang.

It is designed for the Tonneu Cover, but seems to work well on the other black trim.

A little pricey though - $9.95 for an 8 oz. bottle.

 

WIZARDS Vinyl Shine. Works on vinyl, leather, rubber, & plastic. Anti-static with sunscreen and nongreasy. Works on tires too. I really like all their products. If it's really faded they also have a Black Renew.