Tire pressure!!! - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ General Discussion Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 02-04-2012, 05:54 PM   #1
Jeeper
 
Join Date: Feb 2012
Posts: 501
Tire pressure!!!

I jut found out tht my tire pressure was at 15psi wht??? Wht I the correct psi for 32/11.5/15 tires I think I read 29psi but I could b wrong anyone know

TjWranglerMan is offline   Quote Quick Reply
Old 02-04-2012, 05:56 PM   #2
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 32,746
Images: 2
27-29 ps is about right for 32" tires. I'd go 27-28 around town, 28-29 when the Jeep fully loaded and on the highway.

__________________
When you have a choice, buy American.

Jerry Bransford is offline   Quote Quick Reply
Old 02-04-2012, 06:02 PM   #3
Jeeper
 
Join Date: Feb 2012
Posts: 501
Quote:
Originally Posted by Jerry Bransford View Post
27-29 ps is about right for 32" tires. I'd go 27-28 around town, 28-29 when the Jeep fully loaded and on the highway.
I thought it was somewhere round there so my mpg should go up too cuz iwas getting bout 210 a full tank so tht bout 14mpg
TjWranglerMan is offline   Quote Quick Reply
Old 02-04-2012, 06:11 PM   #4
Jeeper
 
97wrangler-242's Avatar
 
Join Date: Oct 2010
Location: poland indiana
Posts: 2,008
It says on your door.......
97wrangler-242 is offline   Quote Quick Reply
Old 02-04-2012, 06:22 PM   #5
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 32,746
Images: 2
Quote:
Originally Posted by 97wrangler-242 View Post
It says on your door.......
Not for his 32x11.50 tires it doesn't. The pressure on the door is only accurate for the size tire that came on the Jeep when it was new.
__________________
When you have a choice, buy American.

Jerry Bransford is offline   Quote Quick Reply
Old 02-04-2012, 06:24 PM   #6
Jeeper
 
LJMJ's Avatar
 
Join Date: Jan 2012
Location: Ypsilanti, Michigan
Posts: 222
I run my 31s at around 28psi for street use (much lower and it "chops" the shoulders, much more and the ride is harsh. Remember, the larger the tire, the less pressure you need (it's the VOLUME of air that holds the jeep up). Play around to see what works for you.

For serious off road use, lower your pressures WAY down (like 15 at the most, depending on the terrain). Makes sure you have a way to air them back up for the ride home
LJMJ is offline   Quote Quick Reply
Old 02-04-2012, 06:27 PM   #7
Jeeper
 
UN150N's Avatar
 
Join Date: Jan 2012
Location: Santee Ca
Posts: 262
I run my 33's at 28-30psi on the street
UN150N is offline   Quote Quick Reply
Old 02-04-2012, 06:29 PM   #8
Jeeper
 
norwoodjeepster's Avatar
 
Join Date: Jan 2010
Location: NC
Posts: 34
Tires

I run 21lbs in my 35's....seems to wear better..just my 2cents
norwoodjeepster is offline   Quote Quick Reply
Old 02-04-2012, 06:35 PM   #9
Jeeper
 
Join Date: Feb 2012
Posts: 501
I have it 29 right now and I feel a big difference in ride I think I'll try this out for a bit till I get some chalk on my tires it says 50psi cold idk kno bout 50 psi sounds high
TjWranglerMan is offline   Quote Quick Reply
Old 02-04-2012, 06:39 PM   #10
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 32,746
Images: 2
Quote:
Originally Posted by TjWranglerMan View Post
I have it 29 right now and I feel a big difference in ride I think I'll try this out for a bit till I get some chalk
Be wary of setting tire pressure solely on the chalk test. The chalk test is responsible for many tires having been underinflated by those who don't also know what a reasonable pressure would be. From what I read above, I suspect there are a couple underinflated tires represented in this thread. It's far better to be slightly overinflated than underinflated which causes a tire to run hotter.
__________________
When you have a choice, buy American.

Jerry Bransford is offline   Quote Quick Reply
Old 02-04-2012, 06:46 PM   #11
Jeeper
 
Join Date: Feb 2012
Posts: 501
Quote:
Originally Posted by Jerry Bransford View Post
Be wary of setting tire pressure solely on the chalk test. The chalk test is responsible for many tires having been underinflated by those who don't also know what a reasonable pressure would be. From what I read above, I suspect there are a couple underinflated tires represented in this thread. It's far better to be slightly overinflated than underinflated which causes a tire to run hotter.
Agreed but 29 isn't under Is it
TjWranglerMan is offline   Quote Quick Reply
Old 02-04-2012, 06:59 PM   #12
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 32,746
Images: 2
Quote:
Originally Posted by TjWranglerMan View Post
Agreed but 29 isn't under Is it
Nope.
__________________
When you have a choice, buy American.

Jerry Bransford is offline   Quote Quick Reply
Old 02-04-2012, 07:07 PM   #13
Jeeper
 
teknoid's Avatar
 
Join Date: Dec 2009
Location: Louisville
Posts: 510
Quote:
Originally Posted by TjWranglerMan View Post
I have it 29 right now and I feel a big difference in ride I think I'll try this out for a bit till I get some chalk on my tires it says 50psi cold idk kno bout 50 psi sounds high
I believe 50 is the maximum pressure rating. I can't think of a single reason you would ever go that high in a wrangler.
__________________
Growing Older But Not UP
teknoid is offline   Quote Quick Reply
Old 02-04-2012, 07:11 PM   #14
Knows a couple things...

WF Supporting Member
 
Jerry Bransford's Avatar
 
Join Date: Nov 2005
Location: Escondido, Calif.
Posts: 32,746
Images: 2
Quote:
Originally Posted by teknoid View Post
I believe 50 is the maximum pressure rating. I can't think of a single reason you would ever go that high in a wrangler.
There is no valid reason to ever inflate an autommobile's tires to the air pressure molded onto its tire's sidewall. The pressure molded onto an automotive tire's sidewall is only its maximum safe air pressure. And that pressure would only be appropriate if it were supporting its maximum safe load which is about double what automotive tires typically support.

Pay no attention to that sidewall air pressure for a Jeep tire. The only time the sidewall air pressure should be used is for a trailer-specific tire when used on a trailer.

__________________
When you have a choice, buy American.

Jerry Bransford is offline   Quote Quick Reply
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Poison Spyder Rear Stinger Tire Carrier DTS Vendor Spotlight! Great Deals for Members. 36 05-02-2014 07:28 AM
Tire Pressure question GeePers TJ General Discussion Forum 21 11-01-2011 10:38 PM
Tire pressure grunt0341 TJ General Discussion Forum 4 08-06-2011 10:50 AM
tire pressure on road tntviper1 General Jeep Discussion 20 06-04-2011 01:21 PM
Tire pressure for 31x10.50 akawonderchild TJ General Discussion Forum 16 05-07-2011 02:13 AM



Download our Mobile App

» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 05:00 AM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC