I have a 1998 24 foot Terry travel trailer (aluminum siding) and have yet to find a product that will remove the dreaded black streaks. I have tried VIM, Fantastic, Black Streak Remover all without success. All of the products remove the obvious streaks but leave the aluminum various shades of white (only visible when up close to the trailer). It seems that car wax (Mothers) is the only product that works but it sure is labour intensive. Any suggestions would be appreciated!
Thanks in advance.

 

I bought some stuff at Bass Pro Shops that works wonders on all sorts of road grime and black streaks on my camper. I don't recall the brand right off, but will try to rememeber and check when I get home tonight.

 

Check out the stuff at Camco. I bought some of their products and it works great!