Extreme Terrain
4x4Wire Trail Talk Forums: Jeep, Toyota, Mitsubishi, Pajero, Isuzu, Kia, 4WD, 4x4, SUV, Off-Road and OutdoorWire Forums


Previous Thread
Next Thread
Print Thread
Rate Thread
air pressure and mpg #677198 12/15/05 08:36 AM
Joined: Sep 2002
Posts: 481
taro Offline OP
Mudrunner
I went a little long on my last tire rotation and noticed that the middle of my front tires were almost bald while the edges were not as worn. The rears looked fine. When I rotated them, I lowered the fronts to 28 pounds hoping to even out the wear while keeping the rears at 35. I noticed tonight that my mpg dropped from the 14s to the 12s. Could the drastic drop be soley to the air pressure drop in the front tires or might there be something else going on? Thanks, Taro

Re: air pressure and mpg [Re: taro] #677199 12/15/05 01:25 PM
Joined: Apr 2003
Posts: 898
litnin Offline
Rock Warrior
Yep, it sure could.

Wearing in the middle indicates you have way too much
air pressure in the tires.
Relieving some of that air pressure to put more contact patch
on the ground, increases rolling resistance which will reduce
fuel mileage.


1995 Trooper LS auto 3.2 DOHC /w SOHC intake
1989 Trooper 2.6 auto
1989 I-Mark RS DOHC 1.6
1991 Stylus XS DOHC 1.8
Re: air pressure and mpg [Re: litnin] #677200 12/16/05 05:53 AM
Joined: Sep 2002
Posts: 481
taro Offline OP
Mudrunner
Thanks for the reply. Gas is starting to go up again. I've been riding my motorcycle most days. If I go ahead and get some heated gloves, I think I'll be alright even down into the 20s provided there's no precipitation.








4x4Wire Social:

| 4x4Wire on FaceBook |


OutdoorWire, 4x4Wire, JeepWire, TrailTalk, MUIRNet-News, and 4x4Voice are all trademarks and publications of OutdoorWire, Inc. and MUIRNet Consulting.
Copyright (c) 1999-2019 OutdoorWire, Inc and MUIRNet Consulting - All Rights Reserved, no part of this publication may be reproduced in any form without express written permission
You may link freely to this site, but no further use is allowed without the express written permission of the owner of this material.
All corporate trademarks are the property of their respective owners.

Powered by UBB.threads™ PHP Forum Software 7.7.3
(Release build 20190728)
PHP: 7.4.33 Page Time: 0.008s Queries: 15 (0.006s) Memory: 0.5921 MB (Peak: 0.6452 MB) Data Comp: Off Server Time: 2026-07-13 03:41:36 UTC
Valid HTML 5 and Valid CSS