Motorhome weighed - Tire Pressure to set

kmb1966 wrote:
Could someone double check me on my air pressure? I could not find a weigh station to weigh all 4 corners, but I do have front and rear weights so far. Loaded the RV for travel.
Front: 6,540 lbs
Rear: 12,200 lbs
Total: 18,740 lbs

Tires are 245/70 19.5 14 Ply.
Hercules tire says maximum pressure 110 lbs. But they only show inflation table for 110 psi. Shows same carrying weights on the Single and Dual as the Goodyear G670 table.

I am putting 95 lbs on all 6 tires.

Both Hercules and Goodyear agree that the 245/70R19.5 LRG will support 3640 single, 3415 dual at 80psi. Even if you use a 55/45 bias (the highest I've ever seen), 80psi is still sufficient for your weights. Personally, I wouldn't run less than 80 since that is the lowest pressure that either manufacturer lists for that tire. If you want an extra margin of safety, run 85psi.