Try this...mix some of this awesome smelling (tropical) carnauba wash and wax in a bucket and fill half full of water.
Use an extended soft bristle brush...like a giant snow scraper (the brush end)
Wet down the camper and dip the brush into the wash/wax mixture and let sit for a minute or two...rinse off
Waalaaa TaaaDaaa all washed, cleaned, and waxed.
Now I had to use the good old rub a dub dub regular paste wax on the front cap since it did have some oxidation on it. This carnauba wax worked great for all over the camper in a short amount of time.
I used Turtle Wax Carnauba Tropical Scent....smells great!!