Forum Discussion

youngone's avatar
youngone
Explorer
Jan 10, 2014

Tire Air Pressure

Just picked up my new GMC 2500 6.0. Tire are Michelins size 265/70/R18E. Tires are set from dealer at 70lbs. What is the best tire pressure for towing my 8000lb TT. Max PSI is 80lbs
Truck is used more for everyday driving. Also for everyday driving what is best tire pressure for ride and wear. Thanks!
Tow Vehicles
  • Cummins12V98's avatar
    Cummins12V98
    Explorer III
    Jan 10, 2014
    Weigh your combo loaded and TV seperately. Use tire weight/inflation chart.

    My Ram 2500 4x4 Cummins empty 72 front 45 rear rotate about 15k. Michelins or BFG's I easily get over 100k on a set. I would guess for you 65 front.
  • Jbechtoldt's avatar
    Jbechtoldt
    Explorer
    Jan 10, 2014
    youngone wrote:
    Just picked up my new GMC 2500 6.0. Tire are Michelins size 265/70/R18E. Tires are set from dealer at 70lbs. What is the best tire pressure for towing my 8000lb TT. Max PSI is 80lbs
    Truck is used more for everyday driving. Also for everyday driving what is best tire pressure for ride and wear. Thanks!


    I run 80psi in tv when towing and 65psi not towing
  • spud1957's avatar
    spud1957
    Explorer
    Jan 10, 2014
    Technically the 70 lbs is required to carry the posted GAWR of your truck. That's why it's on the tire/load capacity sticker. Some people air them up to the max posted on the tire when hooked up. Some air them down a bit when not towing for a more comfortable ride. Personal choice.

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