I have p255/70R16 on my supercrew what pressure should i keep them at? I'd appreciate the

 

ON the side of your tires it says 35psi max cold.

When I had "P" type tires I prefered them at 35psi at all times. Though ... when the truck was loaded up, they were a little squishy. I like "LT" tires much better, firmer handling, more flexibility with tire pressure/ride comfort between empty and fully loaded. JMHO

 

It's a trial and error thing. Start off w/ what the door jam says, and then adjust accordingly for the best wear and ride. I am currently running my tires at 31 psi, and add pressure if I'm hauling a load.

 

sagittarius1, I too switched to LT tires. I never could find the pressure rating on the factory polished aluminum facade rims. Anyone know?

 

I keep a constant 35 psi in the front and 40 psi in the back year round when I had my Goodyear Wranglers LT's on. Good ride with and without a load.

 

I have 255's ...32 up for engine weight...30 in back empty for grip...34 for medium loads..36 for full loads

 

The best pressure is the one listed on the door jam. This pressure applies to any tire you use on the truck. Even if you get a tire with more capacity and holds more PSI, you still fill it to the pressure stated on the truck door. The Goodyear ATS LT tires I had on my 99 were rated up to 44 PSI.

That pressure is an off the truck cold pressure. Once you mount the tire and warm it up driving, the pressure will be higher. I like to add 2lbs to what it says on the door.

This may be a little more than what I need, but I don't check my tires weekly, or even monthly.

 

I've got a '97 F-150 4x4 Supercrew. The label on my door jam says 29 psi. and up to 35 psi on the rear. But I run 35 psi on the front and about 32 on the rear w/o a load. On the dirt, I run anywhere between 25-30 psi, lower pressures for the sand. So far, I have 37K miles and it could go another 5K, but I'll need tires soon.

Warren.