I was also told to never overfill the gas tank either. When the pump shuts off that's how I end it. I know lots of people who will squeeze a few more times to round up the price but overfilling can cause a P0456 code too.
Yes! I used to detail RV's and campers and used Dawn dish soap to clean everything and then used 303 rubber conditioner for the slide-outs. I did the same for my top seals.
I found my leak to have been caused by 2 things. 1, I tightened my top too tight and 2, the seals were stupid dirty. Loosening the top a little bit and cleaning the seals real good stopped my leak.
How do you like the Rough Country roof rack and RTT? I've been looking at this same setup but have been on the fence on buying or keeping my inside setup.