Fiberglass Roof - Our Roadtrek dealer strongly recommended Meguiar's Premium Marine Wax for protecting the roof. This is specifically made for protecting the gelcoat of the fiberglass. It was easy to apply. After 8 years, it seems to be doing a great job of protecting the roof.
Tire Pressure - The pressure recommended on the Roadtrek sticker inside the kitchen cabinet door recommends 50 lbs front and 80 lbs rear. I've tried several different pressures for the front tires. The dealer had them at 80 when I bought it. He said it would work fine and give me the best gas mileage. I had no complaints after driving this way for several thousand miles. After reading several discussions on tire pressure, I decided to try 65 lbs in the front. This gave a more comfortable ride (fewer small bumps felt). Handling remained great. I finally tried 55 lbs in the front tires. This gives me even more of a "car-like" ride. Very comfortable and handling remains perfect. I have not noticed any appreciable drop in gas mileage which averages 15 mpg. I've decided to keep my tires at 55 in the front and 80 for the rear. Incidentally, the Roadtrek rides better and is quieter than our Honda Odyssey minivan.
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