I use Zep #2 floor finish a couple of times a year. First clean with a little ammonia, Dawn mixture. Rinse clean, dry and apply Zep with a sponge mop.
You'll most likely want to wash the whole rv at the same time to be sure no residue is left on the walls.
For painted surfaces use Zaino Brothers AIO Polish. You will not find a product better or easier to apply. No, I don't make money on the stuff.
Rick and Julia
2005 Dolphin 5376, W24, Solid Body Paint, Koni FSD's
2007 Wrangler Unlimited....it follows us everywhere.