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.

XJ gas mileage

Thread Tools
 
Search this Thread
 
Old 01-15-2016, 01:36 PM
  #31  
Seasoned Member
 
t.mcginley.jr's Avatar
 
Join Date: Aug 2015
Location: New Jersey
Posts: 404
Likes: 0
Received 17 Likes on 14 Posts
Year: 2000
Model: Cherokee
Engine: 4.0L
Default

I have to hook up my scanner and see what my fuel trims look like. I'm just curious because I'm running an older 96 4.0L with the larger exhaust ports, but with my 2000 intake manifold and fuel rail, plus an aftermarket header. I'm wondering if the breathing mods are causing it to add a little more fuel.

Also this is on 87 octane like Gunmetal said

I think my tires are only at like 33 psi or whatever the manual spec'd.
Old 01-15-2016, 01:40 PM
  #32  
CF Veteran
 
toasterknight's Avatar
 
Join Date: Jan 2015
Location: Oregon Coast
Posts: 1,508
Likes: 0
Received 5 Likes on 5 Posts
Year: 1999
Model: Cherokee
Engine: 4.0L I6
Default

Originally Posted by Gunmetal Pearl XJ
I'm averaging 15 with 87 Oct Holiday gas. What Octane are you guys filling up with?
Octane has nothing to do with economy.

Also remember some of us are running 10% ethanol and losing a few mpg. I get 15-17 on e10 so about 17-19 on normal fuel.
Old 01-15-2016, 01:45 PM
  #33  
Seasoned Member
 
t.mcginley.jr's Avatar
 
Join Date: Aug 2015
Location: New Jersey
Posts: 404
Likes: 0
Received 17 Likes on 14 Posts
Year: 2000
Model: Cherokee
Engine: 4.0L
Default

Agreed, I always forget about that. In NJ we're definitely running 10% ethanol.

MPG also drops in the winter from all kinds of things. I noticed in my Altima I'll get 26-27 mpg in the summer and 23-25 in the winter.
Old 01-15-2016, 01:46 PM
  #34  
CF Veteran
 
Turbo X_J's Avatar
 
Join Date: Sep 2009
Location: ☼ Blackhole Sun
Posts: 8,567
Likes: 0
Received 18 Likes on 16 Posts
Year: My Jeep is a GMC
Default

Originally Posted by toasterknight
Also remember some of us are running 10% ethanol and losing a few mpg.
Were not losing any thing, we are conserving precious natural resources (that with current use wouldn't last more than ~800 years anyways) by burning our food for fuel. We are a civilized society.
Old 01-15-2016, 01:53 PM
  #35  
CF Veteran
 
toasterknight's Avatar
 
Join Date: Jan 2015
Location: Oregon Coast
Posts: 1,508
Likes: 0
Received 5 Likes on 5 Posts
Year: 1999
Model: Cherokee
Engine: 4.0L I6
Default

Originally Posted by Turbo X_J
Were not losing any thing, we are conserving precious natural resources (that with current use wouldn't last more than ~800 years anyways) by burning our food for fuel. We are a civilized society.
I really hope you are being sarcastic. Ethanol was the worst thing ever done to conventional fuels. It has use in high compression and turbo engines but not here.
Old 01-15-2016, 01:59 PM
  #36  
CF Veteran
 
Turbo X_J's Avatar
 
Join Date: Sep 2009
Location: ☼ Blackhole Sun
Posts: 8,567
Likes: 0
Received 18 Likes on 16 Posts
Year: My Jeep is a GMC
Default

Originally Posted by toasterknight
I really hope you are being sarcastic. Ethanol was the worst thing ever done to conventional fuels. It has use in high compression and turbo engines but not here.
I am of course, but now we will have to learn to eat crude oil to survive.
Old 01-15-2016, 04:33 PM
  #37  
CF Veteran
 
BlueRidgeMark's Avatar
 
Join Date: May 2012
Location: Lost in the wilds of Virginia
Posts: 7,964
Received 957 Likes on 772 Posts
Year: 1998 Classic (I'll get it running soon....) and 02 Grand
Model: Cherokee (XJ)
Engine: 4.0
Default

Originally Posted by Turbo X_J
Were not losing any thing, we are conserving precious natural resources (that with current use wouldn't last more than ~800 years anyways) by burning our food for fuel. We are a civilized society.

Old 01-15-2016, 07:27 PM
  #38  
CF Veteran
 
Waynerd's Avatar
 
Join Date: Jan 2015
Location: North canaan Connecticut
Posts: 1,469
Received 26 Likes on 26 Posts
Year: 01, 99, 98, 98,98
Model: Cherokee
Engine: 4.0
Default

Originally Posted by BlueRidgeMark
Not only is your gas mileage horrible, it's diluting your oil. Make sure you change the oil soon!

Been there, done that.
I know. Been running rotella 15-40. Think I'll bite the bullet and buy an 02 this weekend and make the switch to t5. Luckily I only work a mile from home and can't really drive it far with the control arms being so bad and causing major death wobble.
Old 01-15-2016, 08:04 PM
  #39  
kgm
CF Veteran
 
kgm's Avatar
 
Join Date: Oct 2013
Location: Denver
Posts: 1,589
Likes: 0
Received 1 Like on 1 Post
Year: 99
Model: Cherokee
Engine: 4.0
Default

Originally Posted by Turbo X_J
I am of course, but now we will have to learn to eat crude oil to survive.
Hey atleast the corn was subsidized but you have to pay for it. LOLLLLL
Old 01-15-2016, 08:11 PM
  #40  
Seasoned Member
 
Finn's Avatar
 
Join Date: Aug 2011
Location: Southwest Michigan
Posts: 311
Likes: 0
Received 2 Likes on 2 Posts
Year: 1996
Model: Cherokee
Engine: 4.0 I6 HO
Default

15 mpg the first time I checked. My range seemed really great (300~ miles on one tank, mixed driving) and I filled up at around 1/4 tank.
Old 01-15-2016, 08:29 PM
  #41  
Seasoned Member
 
Orlo's Avatar
 
Join Date: Nov 2014
Posts: 360
Likes: 0
Received 5 Likes on 4 Posts
Model: Cherokee
Default

I can't believe anyone would start a thread on XJ fuel mileage. This is not a Prius forum!
Old 01-15-2016, 09:19 PM
  #42  
CF Veteran
 
Turbo X_J's Avatar
 
Join Date: Sep 2009
Location: ☼ Blackhole Sun
Posts: 8,567
Likes: 0
Received 18 Likes on 16 Posts
Year: My Jeep is a GMC
Default

Originally Posted by Orlo
I can't believe anyone would start a thread on XJ fuel mileage. This is not a Prius forum!
JMHO, if peeps would chart where a years worth of income actually goes they would see that fuel cost isn't even worth discussing. Thanks to burning our food for fuel ground beef scraps is now like $5.99/lb.
Old 01-15-2016, 11:17 PM
  #43  
CF Veteran
 
SatiricalHen's Avatar
 
Join Date: Oct 2013
Location: Greenville, SC
Posts: 5,920
Likes: 0
Received 190 Likes on 165 Posts
Year: 1999
Model: Cherokee(XJ)
Engine: 4.0
Default

Originally Posted by Finn
15 mpg the first time I checked. My range seemed really great (300~ miles on one tank, mixed driving) and I filled up at around 1/4 tank.
300 a tank?! I get half that and fill up with the gas light on.
Old 01-16-2016, 08:14 AM
  #44  
CF Veteran
 
BlueRidgeMark's Avatar
 
Join Date: May 2012
Location: Lost in the wilds of Virginia
Posts: 7,964
Received 957 Likes on 772 Posts
Year: 1998 Classic (I'll get it running soon....) and 02 Grand
Model: Cherokee (XJ)
Engine: 4.0
Default

Miles per tank is nonsense. (I'm being kind.)

The only measure that matters is miles per gallon, with miles measured accurately by a known good odometer or other reliable measurement (e.g., GPS), and gallons measured by what the pump says you put in the tank.
Old 01-16-2016, 08:29 AM
  #45  
CF Veteran
 
SatiricalHen's Avatar
 
Join Date: Oct 2013
Location: Greenville, SC
Posts: 5,920
Likes: 0
Received 190 Likes on 165 Posts
Year: 1999
Model: Cherokee(XJ)
Engine: 4.0
Default

Originally Posted by BlueRidgeMark
Miles per tank is nonsense. (I'm being kind.) The only measure that matters is miles per gallon, with miles measured accurately by a known good odometer or other reliable measurement (e.g., GPS), and gallons measured by what the pump says you put in the tank.
just doesn't add up. 300 miles a tank, 15 mpg that's 20 gallons and he fills up at 1/4 tank. What size tank does he have?! And it does matter to me because my range sucks. I can't drive long distance without having to fill up once or twice, where my sister and my parents can go like 300-400 before filling up.


Quick Reply: XJ gas mileage



All times are GMT -5. The time now is 07:40 AM.