Originally Posted by GrassmasterB
regular car wash might clean the trailer but it doesn't remove the black streaks (common to most white enclosed trailers) running down from the roof. need something a little stronger.
Exactly, there something about that bare aluminum roof crap running down the sides that's hell to get off. If it weren't for the thousands of rivets a good waxing would do a great job of keeping the crap off once you get it clean.