Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here XJ (84-01)
All OEM related XJ specific tech. Examples, no start, general maintenance or anything that's stock.

help with mpg

Thread Tools
 
Search this Thread
 
Old 01-28-2011, 12:03 PM
  #1  
Member
Thread Starter
 
thegoat2000's Avatar
 
Join Date: Nov 2008
Location: lavergne
Posts: 237
Likes: 0
Received 0 Likes on 0 Posts
Year: 97
Model: Cherokee
Engine: 4.0
Default help with mpg

i checked today and im only geting 12.6 mpg with 3 inch lift and 31s full tune up about a month ago iv cleaned the tb and i have the air tube from rustys to i have a crack in my ehaust manifold would that cause this
Old 01-28-2011, 12:06 PM
  #2  
Senior Member
 
No4x4Yet's Avatar
 
Join Date: Jul 2010
Location: Long Island NY
Posts: 997
Likes: 0
Received 1 Like on 1 Post
Year: 2000
Model: Cherokee
Default

Originally Posted by thegoat2000
i checked today and im only geting 12.6 mpg with 3 inch lift and 31s full tune up about a month ago iv cleaned the tb and i have the air tube from rustys to i have a crack in my ehaust manifold would that cause this
Thats about normal, I get from 12-14 city depending on traffic and how im driving.
Old 01-28-2011, 12:07 PM
  #3  
Senior Member
 
pickles's Avatar
 
Join Date: Jun 2010
Posts: 702
Likes: 0
Received 1 Like on 1 Post
Year: 1993
Model: Cherokee
Engine: 4.0
Default

with 31's i get between 9 and 10 mpg.
Old 01-28-2011, 12:12 PM
  #4  
Senior Member
 
mdcmn7's Avatar
 
Join Date: Sep 2010
Posts: 704
Likes: 0
Received 0 Likes on 0 Posts
Model: Cherokee
Engine: 4.0
Default

my last tank was 13.7 mpg
Old 01-28-2011, 12:18 PM
  #5  
Member
 
M4RK's Avatar
 
Join Date: Jul 2010
Location: Williamsburg, Va.
Posts: 263
Likes: 0
Received 0 Likes on 0 Posts
Year: 1998
Model: Cherokee
Engine: 4.0 I6
Default

I've got the same setup as you except with a full exhaust and I'm seeing an average of 11 to 12.5 MPG. It sucks, but I guess that's the nature of the beast. You should consider getting yourself a bike for the warmer months to compensate man, it help a lot.
Old 01-28-2011, 12:39 PM
  #6  
Senior Member
 
No4x4Yet's Avatar
 
Join Date: Jul 2010
Location: Long Island NY
Posts: 997
Likes: 0
Received 1 Like on 1 Post
Year: 2000
Model: Cherokee
Default

Originally Posted by pickles
with 31's i get between 9 and 10 mpg.
Thats a big low, Lil throttle happy are you?
Old 01-28-2011, 12:45 PM
  #7  
Member
Thread Starter
 
thegoat2000's Avatar
 
Join Date: Nov 2008
Location: lavergne
Posts: 237
Likes: 0
Received 0 Likes on 0 Posts
Year: 97
Model: Cherokee
Engine: 4.0
Default

dan i thot i could get like 15 ha
Old 01-28-2011, 02:08 PM
  #8  
CF Veteran
 
djb383's Avatar
 
Join Date: Nov 2009
Location: The Republic of TEXAS
Posts: 8,172
Likes: 0
Received 14 Likes on 14 Posts
Year: 1998
Model: Cherokee
Engine: 4.0L HO
Default

Install one of these.....keep the needle between 15-20....u'll get better mileage.

Amazon.com: Auto Meter 2337 Auto Gage Black 2-1/16" Mechanical Individual Steel Panel Vacuum: Invicta: Automotive Amazon.com: Auto Meter 2337 Auto Gage Black 2-1/16" Mechanical Individual Steel Panel Vacuum: Invicta: Automotive
Old 01-28-2011, 02:12 PM
  #9  
Senior Member
 
pickles's Avatar
 
Join Date: Jun 2010
Posts: 702
Likes: 0
Received 1 Like on 1 Post
Year: 1993
Model: Cherokee
Engine: 4.0
Default

Originally Posted by No4x4Yet
Thats a big low, Lil throttle happy are you?
Not at all. Im thinking it must be due to the cold weather. I never had my 31's on during summer, and it wasn't nearly this low before..
Old 01-28-2011, 02:17 PM
  #10  
CF Veteran
 
Gee oh Dee's Avatar
 
Join Date: Sep 2010
Location: Milwaukee, WI
Posts: 21,168
Likes: 0
Received 5 Likes on 5 Posts
Year: 1987
Engine: Check
Default

Originally Posted by djb383
Install one of these.....keep the needle between 15-20....u'll get better mileage.

http://www.amazon.com/Auto-Meter-233...6245078&sr=1-7


I saw a HUGE increase in people suggesting this right after I saw a certain TV program suggest it.

I lauged when I saw it on TV, and I have to laugh now.

If you need a gauge to teach you how to drive to get better gas mileage, you really need help in other places as well.
Old 01-28-2011, 02:28 PM
  #11  
Senior Member
 
No4x4Yet's Avatar
 
Join Date: Jul 2010
Location: Long Island NY
Posts: 997
Likes: 0
Received 1 Like on 1 Post
Year: 2000
Model: Cherokee
Default

Originally Posted by pickles
Not at all. Im thinking it must be due to the cold weather. I never had my 31's on during summer, and it wasn't nearly this low before..
I got 31x12.5 with 15x10 wheels and I avg 13 mpg city. The extra 2 inch has to hurt plus its heavier. You could prolly brings urs up cleaning and freshening some parts.
Old 01-28-2011, 02:32 PM
  #12  
"CF Moderator"
 
TrekkerJmm's Avatar
 
Join Date: Sep 2008
Location: N.J. Shore Area
Posts: 3,045
Likes: 0
Received 2 Likes on 2 Posts
Year: 1994
Model: Cherokee
Engine: l6 HO
Default

A lot of the time its the O2 sensor before the cat. Even if you have no CEL...Tj
Old 01-28-2011, 03:13 PM
  #13  
Senior Member
 
No4x4Yet's Avatar
 
Join Date: Jul 2010
Location: Long Island NY
Posts: 997
Likes: 0
Received 1 Like on 1 Post
Year: 2000
Model: Cherokee
Default

Originally Posted by TrekkerJmm
A lot of the time its the O2 sensor before the cat. Even if you have no CEL...Tj
Yeah I plan to replace it once the weather gets a lil nicer.
Old 01-28-2011, 03:21 PM
  #14  
Member
 
ASNFMOM's Avatar
 
Join Date: Jan 2011
Location: Caliente, NV
Posts: 127
Likes: 0
Received 0 Likes on 0 Posts
Year: 1999
Model: Cherokee
Engine: 4.7
Default

Well with 4.10 gears,4.6 inch lift, and 31s my 99 is getting right at 14mpg I'm sure if my wife drove this daily it get way better but she hates climbing in with no side steps so it gets what it gets and Im happy about it.
Old 01-28-2011, 04:24 PM
  #15  
CF Veteran
 
djb383's Avatar
 
Join Date: Nov 2009
Location: The Republic of TEXAS
Posts: 8,172
Likes: 0
Received 14 Likes on 14 Posts
Year: 1998
Model: Cherokee
Engine: 4.0L HO
Default

Originally Posted by Gee oh Dee


I saw a HUGE increase in people suggesting this right after I saw a certain TV program suggest it.

I lauged when I saw it on TV, and I have to laugh now.

If you need a gauge to teach you how to drive to get better gas mileage, you really need help in other places as well.
Your post is really helpful to the OP, I'm sure. I just made a suggestion that's as good as anybody else's.

Last edited by djb383; 01-28-2011 at 04:27 PM.


Quick Reply: help with mpg



All times are GMT -5. The time now is 04:08 PM.