Decided it was such a beautiful day, 65 and very light wind, so I got out my scrub brush and soap & water and proceeded to scrub every inch of roof I could reach on my hands and knees. Really made a difference!! Now as shiny & white as the sides of the coach.
Took off the cover on the old, original AC in the rear because I had seen a hornets nest on the motor so good time to really clean the cover, both inside and outside. While inspecting "things" I found two plugs labeled "OII", one on each end of the motor. So, I pulled the plugs and added oil.
Now I wonder if the newer Coleman Mach up front has oil ports also.
I never would have found the ports if I hadn't pulled the cover.
Tomorrow--rain.
Saturday--wash the entire coach.
Almost done with PT for my shoulder so a trip with the coach is in the near future. We'll see if draining the tank, new fuel, & new filters cured my issues.