Just trying to help out a bit for folks with a shine problem on the RV.
There are basically 3 types of surfaces. (Not addressing bare metal, wood siding etc)
1. The older type is bare unpainted fiberglas, usually white.
2. Fiberglas coated with Gel coat... could be any color
3. Fiberglas with full body paint,
Older models without Clear Coat
Newer models with Clear coat.
I will address only item # 1. (My RV).. There is no way to get a shine on it with ordinary methods, i.e. Automobile/Marine compounds and waxes. They won't last more than a few months, after hours/days of back-breaking work. There is, however, an easy way to clean it and prevent dirt accumulation to a very satisfactory level. My old RV looks like new and doesn't seem to want to get dirty any more. Furthermore, after I treated the entire fiberglas roof the same way, the white streaks down the sides after a rain are history. Problem over.
I have posted several entries on this. I invite you to search the forum for "Stop Wax" and see what you can find.
For all other finishes on your RV, there are myriad posts addressing that problem. So what type of RV finish do you have? Your choice.
Will be happy to answer any further questions.