Whats the best tire pressure to run with

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the panther
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I am wondering what you all feel is the best tire pressure to run in our 2001 Qx4 I am running on Michelins?? It looks like the Person I got my truck from was running 28 lbs


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Pwnin O'Brien
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I run my tires at 40psi. My tires are rated with a max pressure of 44psi. I do it for better gas mileage.

QX4ME
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I usually keep my tire pressure between 30 psi and 32 psi. My tire is the optional 17". 30 psi is Infiniti "standard" pressure on 17".

WINNIPEGS_MOST_WANTED
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I run 40psi on my stock tires. A little less when there's lots of snow or ice.

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KyooX4
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I keep it at/around 40 psi, my tires' max load is 44 psi.

I would look at the max load on your tires and keep it 5 psi below that. It should say right on the sidewall.

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fueler
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35 street 22 dirt

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Chuck Tribolet
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Better to err on the high side.

I run whatever is on the door sticker, stone cold. I have a compressor, sothat's easy.

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sc2nr
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I run 35 all around on the stock 17" LE Wheels.

alexf20c
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i run 27-30 on the highway, and 12-15 off road

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K03sport
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The default answer should be what the owner's manual and/or the door sticker (on the driver's side) says. I would not use the tire's ratings as a starting point.

However, vehicle Mfgs usually choose a tire pressure that is meant to deliver the best ride, so they tend to lean to the soft(er) side. This may be fine for lots of people, but the only thing, I think, its good for is a soft ride. The Mfg's tire pressure may not be the best for tire wear and or best performance.

I run my tires at 10% (3psi) above what the sticker says, so 33/34psi. If I know I am going to be carrying a heavy load or a load of people, I will up the pressures to the 38-40psi range, but I will always try and stay under the tire's max "cold" pressure. Also, once you have "dumped" your load (I just said "dump your load"), you've got to air down back to your normal pressures or risk wearing down the centers and the truck will become twitchy over bumps. Of course, hot tires never tell the truth, so this can be tough.

Load and load rating on the tires also may dictate what pressures you run. XL load rated tires may need higher pressures to help support the stiffer sidewall to support the heavier load. Those who off-road, and have the tires to do so, may run them around 25psi (or lower) to reduce ground pressure. Great for the soft stuff, not so great once back on the paved surfaces.

Time of year has a lot to do with it too. Winter: tires will usually read low when cold. Summer: tires will read high when "cold".

In the end, it is ultimately a balance of comfort, tire wear, load, and tires specs in no particular order.

mmm, this is good...anyone got a papertowel...


523
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'01 LE, P265/65 R16 I run 34 all around... from the other comments I seem to be on the low end of the spectrum, and here I thought I was running high.

On dirt roads I will run 26-28, if I had LT's (as opposed to my P Long Trail Tours) I would probably feel more comfortable running lower pressures off road; as it is, I'm afraid I might pinch flat if I go lower.

Even with my street oriented tires, there is a very noticeable improvement in ride when running lower than my usual 34, but mileage does suffer a bit.

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Densetsu
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I rode my tires at 40PSI for a few months. One day I looked down and noticed there was *considerable* wear in the centers compared to the edges.

Sure, my fuel economy increased a bit, but at the cost of quickly shortening the lifespan of $800 worth of tires.

I usually run at 32PSI, I find in that range you get the most even wear on the tires. I'll up the pressure if I'm towing or loaded down, and let some air out if I want a bit more traction.

Each tire is going to be different than the next, though, so while this advice holds true for mine won't necessarily be the best for you.

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pathfinder_se_black
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26 psi nitrogen on 255/70/16

the panther
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Why 26 ?? Your comment interests me cause the past owner of my truck WAS Really Meticilous and that s what he had in it I thought it was very low--------????????

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fueler
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alexf20c wrote:i run 27-30 on the highway, and 12-15 off road
12 offroad!! holy cow !!

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02pathy
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look on drivers door jam but i find 28 - 35psi pretty good

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pathfinder_se_black
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the panther wrote:Why 26 ?? Your comment interests me cause the past owner of my truck WAS Really Meticilous and that s what he had in it I thought it was very low--------????????
it was the recomended tire pressure given to me at the dealership. the stock size is 255/65/16 but i went up to the 255/70/16. they said it was fine. it seems fine to me as well. do you recomend increasing the tire pressure from 26?

first time s14 owner
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I ran 35 all around on my15s (235/75/15)this week, and got 20mpg on a highway drive through the Carolinas! They were all under 30 prior to that (cold) snapAt no point didthey feel loose or 'floaty'

alexf20c
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fueler wrote:
12 offroad!! holy cow !!
i only go down to 12psi on the beach. on the trails, i run as low as 15psi sometimes, and i've never lost a bead. but i do run an 11.5in wide tire on a 7in rim...

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Freyspath
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Pwnin O’Brien wrote:I run my tires at 40psi. My tires are rated with a max pressure of 44psi. I do it for better gas mileage.
Same here.. 40 in the front, 40 in the back.. My tires are also rated at 44psi max. My spare I keep at 35psi, only cuz I never use it. *knock on wood*

Since I live in a city jungle where it never snows, and rarely rains, I dont have any problem driving around in 2wd and 40psi in the tires.

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Freyspath
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alexf20c wrote:
i only go down to 12psi on the beach. on the trails, i run as low as 15psi sometimes, and i've never lost a bead. but i do run an 11.5in wide tire on a 7in rim...
In my 95 Pathy, since I took it to cabo and it now only drives sand terrain 24/7 I run 20psi and never had any problems getting around. Stock tires too
Modified by Freyspath at 4:08 PM 2/17/2010


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