Higher psi on load range C than load E?

[stumblinhorse]

I have only had load E on all my vehicles for a while, JKUR included. Load C weren’t available in the sizes I wanted. Well the toyo at3 35x11.5 are load C. I put them on this week and wondering if people run more psi in load C tires than load E in a JLU? Like everyone I ran 28 in my at2 load E on my JKUR.

I am down to about 32 psi. Seem like they feel perfect. Can’t chalk test, all roads are snow covered…

Sponsored

 

[BroncoHound]

Generally folks run higher pressures in an E-rated tire than a C-rated, but ultimately it depends on the specific tire, the vehicle it's on, the contact patch, and the desired feel of the driver. If 32psi feels good to you, I'm betting you'll have a good contact patch on a chalk test when the weather clears. Ride it as is.

 

[Kreepin1]

I have always run less pressure when running E rated tires on a Jeep to improve ride.

I have C rated 35x11.5 Nitto's on my JLR and found 30 psi to be best. Your 392 is heavier so I wouldn't go below 32 for sure and might try 35 once the roads dry up and you can chalk test.

 

[roaniecowpony]

My best compromise pressure on my 285/70r17 33" K02 C rated tires was 32-33 psi cold which topped around 35-36 hot.

My 37x12.50 D rated tires seem happy around 28 psi cold, 31 hot.

My guess would be 29-31 psi for your tires.

 

[Industrialwrench]

You’d want to run a lower pressure on the E because it’s completely overrated for your vehicle, and will ride like a brick unless it’s loaded with the weight it’s designed to carry. You can lower the pressure down to where it’s better rated at that weight and it’ll still ride like a brick because it’s not designed to operate that way. Just a waste of money and precious comfort. I’m bummed I’m stuck buying D load, the tires in the size I want load C cost a small fortune.

Sponsored