Our 2012 Sterling Wildcat which is gray all over also faded sitting on the dealer lot. After arguing with FR for months, they finally had another dealer 'recolor' the cap. I believe all they did was remove the oxidation and wax. 6 weeks later the fading was worse than original.
I gave up on FR ever fixing or even admitting to the problem. Now the entire RV is faded. It doesn't matter how many times a year we de-oxidize and wax, 6 weeks later it is faded again. We have tried every product out there and have had several professionals try their hand at it.
We have thought about having the whole RV painted, but that is not only expensive, it has it's own set of problems from what I have learned talking to other folks who went that route.
We are now waiting to buy another RV (probably full body paint) until we have a place to store it out of the sunshine. I refuse to use the covers that are expensive, cumbersome, and only last 2 years max in the southwest sun.
I have noticed they don't make many RVs with this gray color anymore
I do agree that RV manufactures aren't doing anything to prevent this and I don't understand why not.
Scott and Liz - Southern NM
2012 Wildcat Sterling 32RL - w/level up (best option ever)
2007 Chevy 2500HD 4dr short bed Duramax w/allison
Reese Fifth Airborne air ride king pin coupler with Sidewinder