I have a 2018 F-250 Super Duty.
it has tires on it that have a tire pressure rating of 80 psi max.
The sticker on the door panel states 60 psi front and 65 psi rear.
I am planning on pulling a 12K# 5th wheel.
Do I go with the sticker or the tires?
Thanks in advance.

 

Tire pressure will increase as tires get warmer, if working really hard.

Ride quality can be affected by pressure, but what is the load rating on the tires?