Your F53 tire pressures

running 100 psi cold in all 6 tires. Load range G Firestones. Weight last month loaded with gas/propane/water and empty tanks was 19,756lb...on a 20,500lb chassis. Rides smooth and handles like it is on rails. 7.6 mpg avg. over last 2700 miles.

I used to run 75-80 and got average 8.5 mpg. I raised them to 90 to see if it handled better in crosswinds. It seems a little better, and not too much harsher, but the gas mileage has increased about 1 mpg. so far.

Approx 97-100 psi in each tire
Load Range G

I run my Michelins at 82 front, 87 rear based upon the Michelin charts and the axle weights of the rig at the CAT scales

I run 96psi cold in all 6. Pretty evenly loaded front to rear and that seems to be a sweet spot for my rig. Running Goodyear G647.

I run mine at 85 cold. But that is per the manufacturer's chart after loading my rig and weighing it. There is no "blanket" PSI, it can be different on every MH.

Mine also rise 10-15 depending on the ambient temp. If it creeps up to 90-100 outside they get closer to 100 PSI or even more when driving. Temps in the 70's pretty much go to 95 and stay there. Front may be a little more than the rears but not much. Temps on the tires are usually about 10 degrees higher than the ambient outside temp. Exception is left rear outside which sits next to the exhaust, it usually runs a few degrees hotter than the rest - curiously no higher PSI so my TPMS could be reading too much exhaust temp and not exact tire temp.

92 psi all the way around.

The sticker on my Sunova says to run 80 so I just run 80

Load range on the tires also matters. Weight front/rear also. My rig is 37 and with my weight I have 95 front 85 rear load range G.