I'm back after a few years of being gone. I originally had a 21 ft. Nomad/Skyline Trailrider toyhauler. Interests changed and life got busy and it sat in storage for a few years and eventually sold it...
WD-40 is not the thing to use on rubber and plastics. It will dissolve certain materials. I only use WD-40 on wet spark plugs in outdoor power equipment.