Tire Air Pressure

[youngone]

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!

[spud1957]

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.