I would use a product called Wash Wax All. They sell several different products to remove different type of residual. This product is manufactured by Aero Cosmetics for the air craft industry to clean planes.
I have used this on my Cedar Creek and Ram truck. I take the kit with me to clean the trailer when we travel. No complaints from the campgrounds at all since it is waterless and no residual is deposited on the ground.
I have attached their link with Aero Cosmetics home page. You can also purchase this from Amazon which I do and get free shipping where ever we are. https://washwax.com/
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Jim W.
2016 34RL CC; 2008 Ram Mega Cab 2500HD, 6.7L, 68RFE 6 speed, 4X4, Smarty S67, TDR 145K+miles
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