What Tire Pressure?

[Walker]

I've got Michelin 265's with E load range on my truck. It says 80psi max (cold). I got them with 50psi from the dealer and have been running that ever since. But I've always ran max pressure in my other trucks up front and slightly less in back (never had a tire rated over 50psi though).

I'm thinking about running 75-80 in the fronts and keeping 50 in the backs. Less rolling resistance equals better mileage is the way I've always been told. What's everybody else running?

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2001 2500 SLT QC 4x4 ETC 5spd LWB 3. 54 Black/Agate leather. DD2's w/boost module, DD4" exhaust, ISSpro boost/pyro gauges. Custom full bumper/brush guard and headache rack, Seal-Tite tool box, B&W turnover ball.

 

[red1ton]

I run them at the pressure that allows the tread to fully contact the ground. If I run at full 80 lbs the edges are off the ground. If I run at a lower pressure, I will wear out the edges of the tires more than the center.
I try to run the tires so they are flat on the ground.

My $0. 02
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2001, 3500, 2X4, QC, SLT, Auto, 3. 54 gears, camper and tow packages. Lance model 1130 camper. Rancho 9000 5 Speed shocks. BD Brake, autoloc, pressureloc. Hadley air horns. OEM bugshield w/eyebrows and dash cover. Member San Jose Ram Runners.

 

[Maxs Dad]

Unloaded - 50 and 50 per my dealer - I have a 12 volt compressor on board for increasing the rear tires to 80 with a full load but 50 feels good on the road - This is a 2500 4X4 long bed with a cap and the wear looks fine so far.

 

[GRudy]

I keep 75 in the fronts and 50 in the duals when running empty and 75 when I'm hauling my lance camper or other heavy load. I have 36,000 on the factory michelins and will be able to get another 10,000 out of them before they have to be replaced. Although I must admit my snow traction is really suffering this winter.

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George, Perry County, PA
99 3500, Reg Cab, 4x4, NV4500, ISB, 4:10,VA box,Putco Boss
running boards, Grover air horns, Intense Blue.

 

[BLACKRAM]

Unloaded, 45lbs in front, 40lbs rear. For my vehicle this allows the tire to wear evenly. I tried higher pressures, but just wore the centers faster.

How do you like the DD2's? Did you need the 4" exhaust for egt's?

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1999 2500 4x4, auto, 3. 54, HD241, Quad cab SLT, Blk Sport Pkg, 285 Bridgestone AT, Amsoil.
1992 SC400
1978 Mooney 201 IFR

 

[Walker]

I've got a 250lb. front end so I guess running 60F and 50R will be ok. Got a long trip tomorrow so I'll see how she handles.

Didn't really need the 4" for the DD2's, but did for level 2 and 3 on the PE. Made a good bit of difference.

 

[Okie-Go]

My truck is 2wd long bed. With the extra tank I carry 60 in all four. Lookin good and even with almost 19,000 miles on em. I do air up the rear to 75 if I load her down which is quite often. I rotate and balance every 5-6000. I think that helps a bunch.

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2001 quadcab slt 2500 HO 6spd. LWB,2wd,dk garnett red, trailer tow package,camper special, anti spin 3. 54 axle, speed liner,oversized stainless steel chicken slide,66 gallon in bed aux. tank,K&N air filter,Reese 20k hitch, Terry 2000 EX 30ft. double slide 5er, 2000 20ft gooseneck for haulin jeep, firewood and huntin stuff. 5X12 tagalong for haulin the 4 wheeler. Okie Newton

 

[B.G. Smith]

Look at all that paper they put in the glove box. Somewhere there is a sheet from Michelin which identifies your truck and your tires and shows loaded and unloaded pressures. bg

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White 99 3500, QC, 3:55, auto. most options except leather, Line-X bed liner, fiberglass running boards Rancho 9000s, bug shield and window vents, black vented 5th wheel tailgate, 110 gal. aux. fuel tank.

 

[EricBu12]

I have tried several different preassures,
but for the best ride with the best fuel economy, I put mine at 65 front and 60 rear
I get 16MPG around town and 20-22 on the freeway. I have the Michelins 265/75-16


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2001 QC 2500 4x4 bronze W/two tone Driftwood, 24valve HO 6sp. Westin side bars, fender flares, Spray on bedliner, shell Painted to match and soon to get Bf Goodrich AT Tires. Bed rug inside shell W/aux marine deep cycle batt for lights, etc. M Brolins' CB mount.
Name of rig is "big bronze Brute"

 

[John Berger]

I'm running 65 in the front and 60 in the duals. That's what the paperwork that came with the truck calls for when loaded or towing. I like the ride so I just leave them like that, now. Tire wear is even.



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1999 Dodge Ram 3500 Quad Cab 5 spd; 4:10 LSD rear; Mag-Hytec diff. cover; US Gear EGT and Boost gauges. Amsoil foam air filter and synthetics from nose to tail.
Cummins Power, don't leave home without it

 

[sdalton]

I run 65 front and 55 rear. I rotate every 7000 miles. I have 17000 on the tires so far and you can barely see any wear. The last 2 tankfuls i got 19 mpg combo city/hwy. I get 26-27 mpg on the highway at 65 mph. If I were to carry a full load, I would pump the front to 70 and the rear to 70-75 .

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Y2K, 2500, 4x2, QC, 3. 54 LSD, Auto, patriot blue. K&N, silencer ring put back in. 14000 miles as of 1-05-01. best milage:28. 5 mpg. transmission reflashed

 

[Ray J]

The paperwork in glovebox and the manual say that for the 265's light load should be 45F and 40R. Full= 55F and 70R. I've noticed comments from quite a few people stating that even at full load they keep the rear at 5-10 lbs less than the front. Why is this?

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01 2500 Sport, QC, LWB, Auto, 4. 10, 4x4, Camper Pkg, Tow Pkg, Geno's muffler eliminator pipe, rest is stock for now