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...
If you give al the right data of vehicle and tires I can calculate an advice pressure .
Tire pressure advice is all about load on tire and speed you drive with. But for fifth wheelers and travel trailers you can go much higher in pressure without the screws tremble loose from the woodwork. So if real weight is 10% lower then maximum load of tire, you better keep "maximum pressure"wich is infact not the maximum pressure of tire, but the pressure needed for the maximum load.