[rohrmann]

The chart is good, and if only you are running the 85 series Sailuns, you can get by with only inflating them to 80 to 95 psi, but if you are running the 80 series, it's 110 psi, or you are capable of no more than an E rated tire. With either tire, and also the G614 and probably the other G rated tires, the ride and handling will be greatly improved by running at 110 psi, and the tires will run cooler as an additional benefit. The axles on these rigs needing the heavier tires are rated at 7,000 lbs, so the tires need to be at least capable of 3,500 lbs, and higher will provide a better safety margin, and improved fuel mileage.