Oh man did you say Turtle Wax? I'd get beat up side the head if I mentioned that name in the detailing forum. I'm just busting ba$& though...I'm sure it's okay for an RV. Just FYI, if you're looking to by a shelf product that doesn't cost much but does a good job....try Meguairs NXT Tech Wax 2.0. You can get it at most auto stores and Wally World. It's a synthetic wax and has some cleaners in it so it does an awesome job cleaning up the finish. It's actually my wax of choice; I use it on my vehicles AND RV except for I apply with a DA buffer. I did this last year and it turned out awesome. This year, I'm going to use an actual polish first to clean and then follow up with a wax. If what you're using now gets you the result you're looking for, then that's all you need.
Good luck and happy camping!!!
BigSur2
2012 Keystone Bullet 286QBS
2006 Ford F150 5.4 V8