Tire pressure for 265/70R17s

[RMR Sierra]

My 01 1500's door jam list pressures for 245/75R16s and should be 35psi. But what is on it (as I got it) are 265/70R17 Yokohama Geolanders. With an 80psi max. What should I be running unloaded for my daily commute? And what if loaded with 600-800lbs occasionally? Thanks.

 

[Molson02536]

My 01 1500's door jam list pressures for 245/75R16s and should be 35psi. But what is on it (as I got it) are 265/70R17 Yokohama Geolanders. With an 80psi max. What should I be running unloaded for my daily commute? And what if loaded with 600-800lbs occasionally? Thanks.

Run your posted tire pressure on the tire, not to exceed the max pressure. Anything less may cause your tire to be to soft and the tire bead may blow out going around a hard corner fast. The posted tire pressure on the door is for the recommended tire that was stock on the Sierra for the optimum performance and comfort.

Replacing the tire with another size and load rating will give you a different recommended tire pressure with a max tire pressure rating stamped on the tire it self. Good luck and running low tire pressure on low profile tires in most cases will cause tire and rim damage on ruff roads and bumps on highway speeds

You can try running the tire pressure less by 5 psi but i would not try anything less then that, good luck and hope this helps.

 

[RMR Sierra]

There is not a pressure listed on the sidewall. With the exception of saying "Do not exceed 40psi to seat the bead." With most tires that have a 44max psi, I typically run 30-32 psi. But for a tire with a max of 80...not sure. Tell me what psi you would run in it with the given information. Thanks.

 

[Molson02536]

There is not a pressure listed on the sidewall. With the exception of saying "Do not exceed 40psi to seat the bead." With most tires that have a 44max psi, I typically run 30-32 psi. But for a tire with a max of 80...not sure. Tell me what psi you would run in it with the given information. Thanks.

Your answer is right there as you mentioned it posted right on the bead 40 PSI, not sure where your getting the information of 80 PSI. It's kinda confusing me on that information, I personally run as close to the max PSI posted on the bead of the tire and then lower the pressure by a few PSI to where i feel the best comfort and performance I'm looking for.

As for me I run the front tires on my Jimmy about 4 PSI more then the rear since the engine is there. I find the softer tires in the back will keep my back tires from hopping around ruff corners, but still on the hard side so i don't have the side wall flexing so i have a better feel of the road under my Jimmy.

 

[RMR Sierra]

The sidewall says that max cold load pressure is 80 psi. It says use no more than 40 psi when "seating the bead". To me that means when assembling the tire on the rim. Hope that clarifies.



I am going with 40psi.

 

[Molson02536]

The sidewall says that max cold load pressure is 80 psi. It says use no more than 40 psi when "seating the bead". To me that means when assembling the tire on the rim. Hope that clarifies.



I am going with 40psi.

Here is a link that should help you get the right tire pressure you need for that tire brand and make. good luck and be safe.

http://www.yokohamatire.com/pdf/geoatpls2.pdf