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P245/70/16 Tire pressure


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Old 11-02-2017, 10:44 PM   #1 (permalink)
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Default P245/70/16 Tire pressure


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Alright I need to know what pressure to run p245/70/16 tires on a 03 Jeep Liberty. Stock tire size was P235/70/16 at 33 psi. Thanks!!!
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Old 11-03-2017, 03:08 AM   #2 (permalink)
 
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Originally Posted by Kaden View Post
Alright I need to know what pressure to run p245/70/16 tires on a 03 Jeep Liberty. Stock tire size was P235/70/16 at 33 psi. Thanks!!!
Same as what is called for in the factory tires. P rated tires stay the same regardless of size. If it where an LT tire. It would be different.

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Old 11-03-2017, 04:50 AM   #3 (permalink)
 
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Read the pdf i have posted in the following thread
Tire Pressure Calculation
it explains exactly how to calculate the tire pressure on your new tires
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Last edited by nbas; 11-03-2017 at 05:17 AM.
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Old 11-03-2017, 10:00 AM   #4 (permalink)
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Alright thanks wasn’t sure if I should stay with the factory tire pressure or not.
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Old 11-03-2017, 10:16 AM   #5 (permalink)
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Ok what if the tires I want are still P rated but are also XL rated tires (extra load). Would that effect the psi I put in them or no???
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Old 11-03-2017, 11:12 AM   #6 (permalink)
 
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You have to check the Tire Inflation tables.
Read the document. It explains how to apply the tables in
"Basic Procedures for reading and applying the load inflation tables"
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2004 Jeep KJ Limited
OME lift: Front 2927/90009, REAR 2948/n132l
JBA A-arm
245/75R16 Cooper STT Pro
PML Transmission Pan

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Old 11-03-2017, 11:55 AM   #7 (permalink)
 
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33 psi on a P235/70R16 corresponds to a Load carrying capacity of 1918lbs
If you want to use a P245/70R16 tire for the same Load, you should inflate your new tire to approx 28-29psi since 26psi corresponds to a Load of 1841lbs and 29psi to a Load of 1940lbs.
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OME lift: Front 2927/90009, REAR 2948/n132l
JBA A-arm
245/75R16 Cooper STT Pro
PML Transmission Pan
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Old 11-03-2017, 04:26 PM   #8 (permalink)
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Thanks nbas I appreciate it!
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