Got E rated tires installed, 80psi max, Tire guy said it would be better to run around 65-70 psi as tires heat up. Always thought I should run max cold rating 80psi. FW weight is around 9000 lbs hooke...
A tire engineer explained the air pressure in the tire carries the load. The tire contains the air pressure, and is part of the suspension of the vehicle (among other jobs it has...) - inflation @ load tables are there to assist you to set you tire shape so it performs the best for that load.
So, on an air ride coach would you over-ride the factory system suspension pressure and set the air suspension springs at 125psi (system MAX)? Why adjust the suspension air psi for the load?