Dually tow vehicle tire pressure

Impulse24 wrote:
35 PSI! I don't even drop that low when I'm off Roading.

The vehicle manufacturers and the tire companies spend hours working out tire pressures. Having a pressure lower than that recommended pressure could lead to shortened tire life and is a potential safety hazard. The air in the tire supports the vehicle, so less air causes the tire to increase in heat and work harder than it is supposed too.

The sidewall markings on the tire for inflation are tire industry standards based on size and usage. In other words they are regulations from the Government for Maximum inflation and load, they are not vehicle specific.

Plus if you read the sticker on the door with the tire pressures you will note it states, something like this vehicle conforms to all Applicable Federal Motor Vehicle Standards at the time of Manufacture.
Hence this is a Government Sticker (DoT) and should be adhered to.

Also a Tire Guy at Discount may look as a know nothing, but they train and get certified to do the Job.

I will keep running 65 psi all round loaded or empty, as recommended by Discount Tire and the DoT Stick not forgetting the tire manufacturers side wall pressure!!

So the newer GM duallies have LT235/80R17E tires, which at 65 psi are rated to 2680 each. The front GAWR appears to be 5600 pounds. So at 65 pounds inflation the tires are unrated for the max axle rating. So are you sure it says 65 pounds all the way around.

BTW at 35 pounds dual the tire is rated at 1570 each or a total of 6280, which is fine for casual everyday used include runs to box stores giving well over a ton of capacity in the bed. Chris