Well, I know this topic gets beat to death but I wanted to post a report on a new product I tried.
First, the front cap started to fade immediately after we brought it home brand new in March 2011. It was returned to the dealer who didn't "go to bat" for me with Keystone at the time. They merely had it detailed and gave it back. I have spent countless hours detailing the cap with multiple products and then read somewhere about Marine 31 Gel Coat Heavy Cut Cleaner Wax.
I already had a Porter-Cable Dual Action buffer so I also ordered a couple of wool pads and after we returned from a week trip I decided to give it a try.
First, it was the easiest product I have tried so far. It is one step, clean and wax. I think it could come out even better if I was better skilled with my buffer. It worked exactly as promised. It cut the oxidation and returned a gloss and shine to almost new condition. I realize I will eventually lose my decals doing this but I did the entire cap, decals and all, and it actually brought back the color in the decals too! If you look closely at the mountain graphics you will see that.
I have no delusions as to how long this shine will last before the oxidation returns but at least now I know that this product will restore the finish and it only takes me about an hour to do the whole cap.
As a side note, in order to get good reach to the entire cap and remain relatively safe, I extend my front legs all the way without dropping the inner legs, to unhitch from the truck. Then I lower the front of the trailer all the way down. It looks like the trailer is kneeling. It is extremely low in the front and I can easily get all the way to the top on a 5 foot ladder and remain very stable while working.
Hopefully these pictures will give a sense of how well it came out.
In the first picture I have done a test section of maybe 3x3 on the left below the Cougar name and above the mountain graphics.
This picture shows the same section done but from another angle.
In this picture the entire top is done including the Cougar name and HIGH COUNTRY lettering.