I have Cooper Discovery A/T tires on my truck, size 265/75/16. What PSI are you guys running in your tires, and what do you have??

 

I have 285's BFG's. 55PSI in the front, 50 in the rears.

You want to run the PSI so the tread is in full contact with the pavement for even wear. Too much air and they "ride" in the middle of the thread, not enough and they "cup" in the middle.

 

Run about the same as Geico, but I air them up to 65 in the rears when I tow.

~Rob

 

I run 315's on stock 8" wheels at max pressure ... 50 psi. Reason = Best mileage!
I would run them higher but they won't ride flat on ground when empty. Experts here say +5-10 psi does no harm as long as you get full tread on the road for smooth wear.

RJ

 

Paint a white line across the tire tread and take it for a drive on dry pavement.
If the paint wears off the center of the tire first lower your psi.
If it wears off the outside increase the psi.
I run 60 on the front and 50 on the back of my Toyos.