are you talking about the tent ends or the camper?
The recommended cleaner by the tent manufacturer (JT Snuggles) was a mild soap - specifically - laundry detergent (I used Tide liquid).
for the camper itself, i used a car wash. Black streaks, i use Scrubbing Bubbles.
HTT: "EscapeII" 2016 Shamrock 23WS (current)
PUP: "Escape" 2010 Rockwood HW 277 (gone)
TV: "Bruce" 2011 Dodge Durango V8 Hemi Crew
Just us gals (me, Sis and our daughters)
We spend alot of money to go sit in the woods