Pick up truck tire pressure

[Ham Camper]

I bought a 2015 GMC Denali HD, 3/4 ton, and the book calls for different air in the rear tires than in the front. Do people put more air in the rear tires for when they are towing? Or is this something that is done regularly. People I have asked said they run with the same air in front as in back no matter whether they are towing or not.

[Torch]

My 2013 Ram 2500 calls for 60 front,75 rear with heavy loads, light loads 60 frt/45 rear for a better ride, theres 2 settings for the tpms in the truck so it does not get an error when you change pressure.

[mcnabbwr]

For what it's worth I run max cold pressure in the rear and just over recommended on the front but not quite max. My sticker states 65 front and 80 rear. I inflate the front to 70 it seems to ride better.

[aceinspp]

My 2015 Chevy 3/4 calls for 60 ft 70 rear so that is what I keep them at. Later RJD

[Itsthetwoofus]

Our 2011 F250 Super Duty says to put 75 lbs in the steering and 80lbs in the rear. I do that religiously when towing the 5th wheel but carry 75 lbs all around without the 5th wheel. Works great for us.

[ependydad]

I keep both at max towing or not towing. Makes it quicker when I go to hook up- just a quick pressure check and I'm on my way vs. knowing that I need to put air in.

[Travler]

It is best to have proper pressure for the load on the tire. If at maximum pressure with no real load then the tire will be high in the center. This will cause wear in the center faster than the outside. On some trucks that may not be that much different. I have on truck that if you run sidewall pressure the traction to start and stop is greatly reduced because tire surface touching the road is reduced. You can check this out at times when going through an area that is only slightly wet or dirty and you can tell that the tire is not flat. It is easy to inflate to max but it is not always the best thing you can do.

[pontiacdan45]

I have a 2015 GMC 3/4 ton gas towing a 5er. Recommended pressure on the truck is 70 rear and 60 front. When I had it at the dealer and they rotated the tires they didn't reverse the pressure settings to conform to the recommended pressure fron and back. I filled tham to the recommended pressure before we left on this trip through Ontario and Michigan. I'll bet there is a fudge factor in pressures for the TV and the trailer but I try to run what is recommended.

[Itsthetwoofus]

Oh heck that's almost expected every time I get my tires rotated, even at the Ford Dealer. For that reason and to always check my tires I carry an air compressor with me. It's a must have at all times.

[RubberNail]

Best advice is what the Govt gives to their Special Agents. Run 5 lbs over the door post. For my 2007 GMC 2500HD 4x4, that's 70 front and 85 rear. When empty and wife complains I drop the rear to 60 or 70. Pull a 5r. Rear axle at max rating. Total vehicle and tow, loaded, about 22k #. All at max truck ratings, and no problems after 85K mi of towing.

[Rhoyle]

I asked a friend once about tire pressures when towing and empty. He told me that to find the correct pressure for my vehicle and trailers as to set the pressure at the suggested amount, take some chalk and mark a line across the tread , then drive a short way. If the chalk wore off in the centre, then reduce pressure, if it wore off the edges add more. If it wore evenly across the tread, then that was the correct pressure.

[Ham Camper]

Thanks everyone for all the replies. My truck calls for 60 in the front and 80 in the rear. I guess that is what I will run. Happy camping all!

[elind]

My OnStar tell me when every month when my GMC 2500 tire pressure is off. They tell me 75 front & 80 rear and that's what I follow.

[Happy Vibe]

Rubbernail what tires do you have that can take 85psi? You should never go over maximum on the sidewall.

[silverback 35ts]

Originally Posted by Ham Camper

I bought a 2015 GMC Denali HD, 3/4 ton, and the book calls for different air in the rear tires than in the front. Do people put more air in the rear tires for when they are towing? Or is this something that is done regularly. People I have asked said they run with the same air in front as in back no matter whether they are towing or not.

I am glad you read the tire sticker in the door jam to see that pick ups have a different pressure for ft and rear. No you should NOT run the same pressure when towing (unless the trailer is that light to you truck it does not matter) BUT VERY FEW DO THIS, so you are correct you run a higher amount in the rears when towing, Most gm. models are 50/55 fronts, and 80 rears. Now if you are towing a tag type trailer you might need to adjust the rear tire pressure as the tough weight might not need to much, but only time and driving will tell you that.

And yes you need to then take the air out when you are not towing for a length of time (the center of the tire will wear out quickly) and then just air them back up when you need to tow again.

Hope this helps you out and Happy Camping

[Jim34RL]

When I had my older 2001, 3/4 Ton Chevy before TPMS was mandated on vehicles less than 8,000 LB. You were always told to run the front tires at one pressure level reading and the rear with no payload or trailer towing at lower setting (nothing less than 45 PSI). You were than instructed to raise the air pressure to a higher setting when loaded to support the load.


Now with my 2008 Ram 3/4 ton diesel truck; I am using Nitto Dura Grappler tires (126R rating) and the front is set to 50 PSI all of the time and the rear are either 50 or set to 70 PSI depending on the load. I have also removed the TPMS senders in the wheels and tires. Don't tell big brother!

[whj469]

My 2011 F250 calls for 60 psi in front and 70 psi in the rear and that is what I put in them.

[slapshot12]

My '15 F250 calls for 65 all around, and I use that when not towing or towing very short distances. On long towing trips, I run max cold pressure (80) all around.