I've detailed 2 RV's in my life, that was enough.
Lots of real estate, lots of work...
- RV's with gel-coat finishes will oxidize
- RV's with actual paint will get swirls and scratches
The goal for either will be to wash and then use a one-step cleaner/wax and hopefully with a DA Polisher.
For an oxidized finish you'll want to use a strong cleaner/wax so you can remove the oxidation and leave behind a clear finish that's protected. For a painted RV you can match the aggressiveness or lack thereof for the cleaner/wax to the condition of the paint but you still want to use a one-step product unless you have lots of time to invest into dedicated steps.
- Wash
- Clean or correct the paint (remove swirls, scratches and water spots)
- Polish
- Protect
Keep in mind that each step requires you to then use your arms to wipe the entire RV down to remove leftover residue.
The best of all worlds is a light colored, painted RV in good shape that you can simply wash and then machine apply a light cleaning or non-cleaning polymer sealant.
:)