Truck tire pressure.

Here's the inflation table. You have to determine the weight on your axles by taking it to the scales.

60 psi will carry 6060 lbs. per axle.
65 psi will carry 6390 lbs. per axle.

Front GAWR could be 4550-5600.
Rear GAWR should be 6340.

Those standard pressures will handle any load up to the limit on the axles.

What is the front and rear GAWR on your truck?

j09789 wrote:
Recommended cold PSI is 60 front & 65 rear. They are Michelin 275/65/20 load range E on a 2017 F250 Power Stroke. Should I increase the pressure when towing my 39' toy hauler (Triton by Voltage)?

that is a big trailer, and if you have gear in it, its heavy.
if your truck is not a dually, increase the rear pressure to max tire pressure..... manufactures rate the vehicle as it is delivered from the factory, and if the buyer adds a load, modifies the vehicle, or installs different tires than what came as OEM, its up to the buyer to figure out what has to be done to find the right balance again..

I run michelins also but the max pressure for the model of tire I have is 80psi... I keep them fully inflated and they wear nice and I get good life from them.
an under inflated tire causes heat. and heat is the worst enemy of tires.
a tire that gets punctured can be repaired many times, but tires that overheat have to be replaced every time...

trailer tire failures (blowouts) are common, but its seldom the fault of the tire, but because it didnt have enough pressure in it to keep it from over flexing, and overheating....

Hmm, I guess I figured Michelin would follow suit with the other big brands but seems not. Can't find a current published inflation guide for that size tire. They only cover 16, 17 and 18".

GordonThree wrote:
Probably? Get things weighed and set pressure according to tire load chart.

Otherwise, max sidewall is a popular option for many.

X2.
I suspect you need something closer to 70~75#.
Not only will it carry the load more safely but it will handle nicer too when your pressures are right.

Why not follow tire manufacturer’s recommendations? Keeps warranty and max weight representations in force. Deviate and...YOU lose...product used incorrectly.

My sticker says 70 front and 65 rear and that's what I run. Tires been wearing fine.

That rear tire pressure sounds like an unweighted number. Check your sticker again. My chevy sticker says 80lbs in the rear tire (265/75/16s) when loaded. Michelin web site says to go with the vehicle sticker.

Probably? Get things weighed and set pressure according to tire load chart.

Otherwise, max sidewall is a popular option for many.