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Old 04-05-2008, 07:10 AM   #1
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Tire Pressure

Hey everyone. I was just asking what everyone runs for tire pressure. Last december i bought some new tires, Goodyear Wrangler silent armors. I checked the air pressure in them the other day, and they all have 40 psi in them. I called goodyear here in town and asked them what tire pressure i should be running in these tires, and they told me between 35 and 44 psi. I told them that i think this is to much air pressure, and they told me this is what goodyear recommends for expected tire life, and wear. My tires still look like there brand new with no signs of wear yet. But then again i only have 1500 miles on these tires.

What do you think? Are they correct on the tire pressure, or should i lower it to around 35 psi?

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Old 04-05-2008, 07:12 AM   #2
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OH .. Goodyear also says these are rated as a lite truck tire and not a passenger tire. Does that make a differance?

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Old 04-05-2008, 07:20 AM   #3
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follow jeeps recommended tire pressure, in owners manual, or in driver vin label. 44 is too much. your should be around 33, i stay around 35. remember ford exploders, i mean explorers that were rolling over, was more of a tire pressure problem, than firestones problem. tire monkeys fill those tires when they mount them, to whatever they feel like, they don't have a clue what they are supposed to be, and they don't take the time to check. hope this helps
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Old 04-05-2008, 09:01 AM   #4
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35 psi all around...

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Old 04-05-2008, 12:27 PM   #5
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28lbs in the front and 25lbs in the rear, this is giving me even tire wear and a better ride.
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Old 04-05-2008, 12:55 PM   #6
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Take some thick drawing chalk, a large empty flat parking lot, chalk all the tires from side to side across the tread, you want a good solid 6" band of white from side to side. Start the jeep up and slowly accelerate then take it out of gear and let it coast to a stop without using the brakes. If the chalk is worn off in the center pressure is too high, worn off on the edges, too low. Add or remove air as needed, do this with the tires at operating temp.
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Old 04-05-2008, 01:03 PM   #7
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The set of tires on my Jeep has 50psi listed on it as the correct pressure. I keep it around 35.


The tires are Falken RV Radial A/P tires.
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Old 04-05-2008, 07:27 PM   #8
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Quote:
Originally Posted by Unheroic Hero View Post
The set of tires on my Jeep has 50psi listed on it as the correct pressure. I keep it around 35.
50psi is the MAX load baring.

My 32" BFG All-Terrains stay around 30psi for best wear.
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Old 04-05-2008, 07:57 PM   #9
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you don't want the tires at their max rating, following manufacturer won't steer you wrong.
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Old 04-05-2008, 08:13 PM   #10
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PSI on the tire is NOT the PSI you should run. It drives me nuts when I see females doing this. That PSI on the tire is the MAXIMUM PSI the tire can handle. Some trucks run crazy pressures, this is to insure you don't accidently put that tire on the run vehicle.

the proper PSI for your vehicle, and any vehicle for that matter, is 99% of the time on the driver side pillar. It will have a rating for front/rear/spare.
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Old 04-07-2008, 07:19 AM   #11
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Originally Posted by JCS05Rubi View Post
PSI on the tire is NOT the PSI you should run. It drives me nuts when I see females doing this. That PSI on the tire is the MAXIMUM PSI the tire can handle. Some trucks run crazy pressures, this is to insure you don't accidently put that tire on the run vehicle.

the proper PSI for your vehicle, and any vehicle for that matter, is 99% of the time on the driver side pillar. It will have a rating for front/rear/spare.
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Old 04-07-2008, 07:52 AM   #12
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about how fast should you accelerate to when you do do that chalk test?
and for how long should you roll?
or does it not matter b/c it will still be on there no matter how long u go??

btw i have all four of mine at 33, but idk maybe i should have the rear less
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Old 04-07-2008, 09:00 AM   #13
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i personally follow the 10% less of max psi guideline.
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Old 04-07-2008, 09:39 AM   #14
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about how fast should you accelerate to when you do do that chalk test?
and for how long should you roll?
or does it not matter b/c it will still be on there no matter how long u go??

btw i have all four of mine at 33, but idk maybe i should have the rear less
You don't want to spin the tires, you want it to wear off during the roll. I just let the clutch out in 1s and don't touch the gas then push the clutch in after about 20 seconds or how big the parking lot is, into neutral and clutch out then let it coast to a stop, shut it off, 1st gear and get out and look, sometimes you leave it in Neutral so your can roll the jeep back and forth to see the marks. Need a level lot for that

I run my BFG's at around 40psi.
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Old 04-07-2008, 10:20 AM   #15
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Door jam sticker says 33psi so thats what i run, but if i werent running a stock size tire i would play with pressures to find teh best wear.
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Old 04-08-2008, 05:35 PM   #16
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Keep in mind - those recommended pressures are on a cold tire. As soon as you start to drive, heat builds and the tire pressure increases slightly

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