Tire air pressure question

I tow with mine at 60/80, but generally drop to 60 all around when I'm not towing. Makes the ride nicer and the rear tires wear more evenly at the lower pressure. There's no reason to run the front tires at a higher pressure, the front axle weight doesn't vary all that much regardless of hitch/pin or cargo weight.

IdaD wrote:
I tow with mine at 60/80, but generally drop to 60 all around when I'm not towing. Makes the ride nicer and the rear tires wear more evenly at the lower pressure. There's no reason to run the front tires at a higher pressure, the front axle weight doesn't vary all that much regardless of hitch/pin or cargo weight.

Same here .

cummins2014 wrote:

IdaD wrote:
I tow with mine at 60/80, but generally drop to 60 all around when I'm not towing. Makes the ride nicer and the rear tires wear more evenly at the lower pressure. There's no reason to run the front tires at a higher pressure, the front axle weight doesn't vary all that much regardless of hitch/pin or cargo weight.

Same here .

Same here.

Curly2001 wrote:
I have a 2019 Chevy 2500HD that shows on the yellow sticker on the door, air pressure is 80 psi for the rear and 60 psi for the fronts as max air pressue. Should I tow with these or do I need to inflate the fronts higher?
Thank you,
Curly

The tire pressures on the door sticker aren't "max" pressures - they're the recommended pressures for those tires on that particular vehicle. 80 PSI is the max pressure for an LT load range E tire. This happens to coincide with the recommended inflation pressure on the rear - but not on the front.

As others have said, keep them at what the door sticker says. When I had a single rear wheel truck, I asked my dealer service department if I could/should lower the rear pressures to 65 when not towing. They said to leave them at 80 PSI. From a practical point of view, though, there would be no harm in lowering the rears to 65 when empty... just don't forget to take them back up when loaded or towing.

Rob

On my 2020 2500HD I have 20" wheels on the truck and an 18" spare (same diameter overall). They're Goodyear Wrangler AT tires. Yellow sticker says 60 Front/70 Rear/80 Spare. That's what I keep them at. Towing or not.

Hmmm minority here.

Have load range E tires with max psi of 65lbs.....when not towing I run the rears at 40 and the fronts at 47.
Tires wear even and my 2500 rides better than a hay wagon.

Plenty of folks do not understand load vs inflation pressures.
Don't guess, but rather us ea simple load/inflation chart for your tire size to decide what pressures you need for your conditions, empty and loaded.
Or just drive around with too much or too little air in your tires...
Btw with a gasser HD, emoty truck, you'll have 4000lbs + on the front axle and about 2500+ lbs on the rear axle.

Second Chance wrote:

As others have said, keep them at what the door sticker says.

Rob

Totally false information. Yes, it "can" be done, but will generally result in running too high of pressures for the load, save for max load scenarios. (Likely outside the "rating" of the truck if you're a sticker believer."

RobWNY wrote:
On my 2020 2500HD I have 20" wheels on the truck and an 18" spare (same diameter overall). They're Goodyear Wrangler AT tires. Yellow sticker says 60 Front/70 Rear/80 Spare. That's what I keep them at. Towing or not.

Ouch. Why?
Just drove my personal rig to work today. Rear tires still around 80psi from hauling the TC. It sucked! Spinning tires easy on wet pavement, rock hard ride over potholes and manhole covers, etc.
35-40 psi is where they should be running with no load.

3500 SRW towing 14K 5vr

Towing........
55 psi Fronts/80 psi Rears

Not towing....
55 psi Fronts/45 psi Rears


Air pressures are via weight being carried
Fronts stay at 55 psi all the time
Rears air up when towing/drop psi when not towing (6200#/Towing & 3120#/not towing)

Wear is even on all tires