X 2 on the Blue Coral wash from Walmart. I also buy Lucas Slick Mist and Turtle Wax 1 Step Wax & Dry both about $5 to $7 at WM. With either one just spray on after you rinse the rv and then wipe dry with a soft towel. For high areas, I use a Swiffer mop and stick the edges of the towel in the holes. (No going up and down ladder) Like the bear II says, it has a shine that looks like you spent all day waxing. I used to wax the rv twice a year with NuFinish and was exhausted at the end of the day. Now it is so simple, wash & wax takes about 2 hours,and I get lots of comments on the shine.