Tire PSI

"If you run 110 psi tires at 85 psi they will run even hotter."

It all depends on the LOAD being applied to the tires!

OP load up and weigh each of your axles. Now look up the tire weight/inflation chart for your tires. On the RV add 5psi to your weights. Truck add 5psi rears and 10 Psi fronts.

If you want to use your God given brain do what I suggest otherwise blindly run 80 rear truck and wear out the center and 50 front will wear out the edges. RV at 110# depending on actual load if you only need 85 and run 110 your ride will be worse, stopping traction will be less and tire wear will be more.

I choose using the charts and my brain, it has served me well for over 1 million traveled miles with far better tire wear then the VAST majority.

classic 31 wrote:
My door sticker says front 50lbs and rear 80 lbs owners manual said this pressure is good up to the max gvwr 8600lb The tires are LT 245/75R16 tireS are rated to 80 lbs truck is loaded and has a very good ride with this pressure. 30 lbs less than the max of 80 on the front.

Truck mfg. doesn't care about tire life... they're more concerned about ride quality... -30 lbs @ hi-wy speed will drive tire heat really high.. I'll take the tire mfg pressure suggestions.

My door sticker says front 50lbs and rear 80 lbs owners manual said this pressure is good up to the max gvwr 8600lb The tires are LT 245/75R16 tireS are rated to 80 lbs truck is loaded and has a very good ride with this pressure. 30 lbs less than the max of 80 on the front.

What does tour truck’ owner’s Mayans say about the tires and pressure to use?

110 is the cold tire pressure. That means, they've already taken hot air expansion into effect. Yes, it will be higher than 110 when they warm up. That's fine.
110 psi is a fine pressure to run but may be higher than necessary resulting in a harsher ride than necessary. If you weigh the axles and look at the tire manufacture's load inflation table you may find a significantly lower pressure is sufficient for your weights.

Real info is usually found on the tire sidewall. Opinions are usually found on here.

grizz02 wrote:
Is there anyone that has any real info on tire psi.

Lots of us do....
Simple. When towing, run your tires at max pressure as stamped on the sidewall.

If you run 110 psi tires at 85 psi they will run even hotter. Don't worry about hot days, check them when they are cold and pump them to max.

.....and you don't need to go through the hassle of weighing each tire and each corner and all that silliness. Pump them to the max, and get on down the road. Don't make this more complicated.

"Forum Technical Support" (this forum) is for help with the web site itself. Ask a moderator to move your post to the appropriate forum.

Rob

To do it right according to some you need to weigh all corners and adjust the pressure according to tire mfg load chart. The rest of us inflate to max cold pressure as listed on the tire sidewall and go.