What is the max safe cold tire pressure?

[jadatis]

Originally Posted by thomseninc

Michelin LTX AT2, 275-65R20, E rated. The door sticker says 65 psi, but I just looked at the “fine print” on the sidewall and it says max load of 3750 lb at 80 psi. I think my question is answered: run at 80. Thanks to everybody for helping. I feel bad about wasting everyone’s time!

Still would like to know if the 3600 lbs you gave, was weight on one wheel or on the axe, and if weighed empty or fully loaded.
If on axle and fully loaded( also the persons) 80 psi will give terrible bumping, and 41 psi only needed.

[thomseninc]

Originally Posted by jadatis

Still would like to know if the 3600 lbs you gave, was weight on one wheel or on the axe, and if weighed empty or fully loaded.
If on axle and fully loaded( also the persons) 80 psi will give terrible bumping, and 41 psi only needed.

One tire, fully loaded.

[jadatis]

Then full 80 psi is needed, and in my list given it gives 81 psi to have maximum reserve if heavyest side on the axle. So 80 psi a litle less reserve, but can do.

[CalandLinda]

Tire load inflation charts are collaborations between tire manufacturers and the Tire and Rim association (TRA). Their goal is to provide standardized load inflation charts for general use throughout the tire industry. The end product is not providing recommendations. They are simply providing a chart by designated tire size that is primarily used by vehicle builders when determining the settings of recommended cold inflation pressures for vehicles built under the guidance of FMVSS. Vehicles governed by FMCSA have a different set of tire rules and regulations and one is not applicable to the other.