Just an FYI for anyone with this problem.
We park our Cougar on the south side of the house facing west. This means the south side and west facing front are pretty much constantly exposed to the sun. This spring I noticed the whole south facing side had what I'll call "alligator" skin" oxidation. It was probably there last season but I thought a coat of polish would take care of it. While it looked at the time, it didn't last.
After a quick Google search I found this video:
The guy goes into great detail on how he solved his oxidation issue so I won't belabor that. I just wanted to add my endorsement of the product he used.
Meguiar's M6732 Marine/RV One Step Compound
This stuff really works as advertised. Alligator Skin Gone! One Step
Two hours to complete the most affected side of the Cougar, so not too hard to use. Definitely use this in the shade and when it's cool. Also, I found after applying by hand, a simple buffer followed by a clean terry towel left a great shine.