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 Post subject: Average MPG's
PostPosted: Sat Jan 03, 2009 11:48 pm 
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Location: Wichita/ Pittsburg, Kansas
I was just wondering what everyone is averaging as far as MPG and what mods they have done to their Jeep that would effect the MPG.


I have calculated up from the last 36 fill-ups on my KJ and I came up with an average of 13.95 MPG which is probably about 70% Highway and 30% City.
and that's with 245/75/16 Load Rating E Tires w/ 16" Steel Wheels
3" Lift
65# Front Bumper
50# Rear Hitch
35-40# of Gear in the Back (Tow Strap, Tools, Fluids, etc.)
plus Transfer Case, Engine, Transmission and Rock Rails

and of course that's with the 3.73 gears and I don't have a roof rack....I don't even have roof rails on the KJ. :evil:

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1980 Jeep CJ7 Buggy
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Last edited by jsc7002 on Sun Jan 04, 2009 12:05 am, edited 1 time in total.

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 Post subject:
PostPosted: Sat Jan 03, 2009 11:55 pm 
full skids, about 40 pounds of junk in the back (no tools, no fluids, just junk :lol: ), 245/75-16 MTRs, about 2.5/3" lift, averaging 15.5/16mpg 70/30 mix of city/hwy. All city, getting about 13, all hwy, about 19.5-20


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PostPosted: Sun Jan 04, 2009 12:21 am 
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Location: DFW, TX
I have had about 15 tanks since I got new wheels (Cragar 15x7 Black D's), tires (Treadwright A/T-G), Daystar lift, and trimmed front bumper. Average on those 15 tanks is 15.38 MPG. Prior to that, with stock 16's with the stock Wrangler ST's, I got 16.52. Almost all of my driving is in town driving. I drive a whopping 15 miles to work each day, but also use my KJ for the daily errand running and everything else for family outings in town/traffic.

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2007 Light Khaki 4x2 Sport
- Debadged - LTT CAI with Amsoil Filter - JVC HD Radio - Infinity BassLink
- Iggee Seat Covers - Black Moabs - 265/75-16 Cooper Discoverer ATP - 4.10's
- DIY Franky sitting at 23.75" - Al's 4.5 UCAs - Trimmed F&R Bumpers
- Removed Rear Sway Bar - Removed Rear Vibration Damper
- 75k miles so far...
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 Post subject:
PostPosted: Sun Jan 04, 2009 1:32 am 
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Location: Colorado Springs
Winter-9mpg's,all city

Summer-13mpg's,all city


When I do get on the highway I get 20mpg's,265/75's,4.10's,and 5500lbs.


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 Post subject:
PostPosted: Sun Jan 04, 2009 2:53 am 
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Joined: Thu Mar 30, 2006 11:50 am
Posts: 1272
Location: Upstate NY
Winter is killing my mileage.

It has been really cold here and we also get winter gas. Not any real city here as I am in a small village of 1,833 people so I got one traffic light and I am out of town. Rural 45/55 mph roads mostly and interstate and I am around 15 combined lately. About a 3-4 mpg drop compared to summer. Pretty bad.

My mods that add weight are in my sig. I have about 150 lbs of recovery crap, plus compressor, electric lug wrench, etc etc in the back also.

I have driven the car the past 2 days and even that is a crappy 24-25 combined when it should be 29-30. So it is not just the KJ that is getting poorer mileage. The KJ is sleeping in the garage for the last 2 days but it will come out to play tomorrow though.....haha

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05 BLACK KJ - 42RLE & NP242
Skids, Hooks, Bent Rock Rail, Lifted, A/T's, etc.
NY and PA and Florida ONF Special Custom Organic Trail Rash


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 Post subject:
PostPosted: Sun Jan 04, 2009 4:44 am 
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Joined: Sat Jul 26, 2008 4:56 pm
Posts: 107
Location: Flagstaff, AZ
Full Skids
Full set of tire chains in the back
245/70/16 Grabber AT2's
2.5 inch lift
HiLift Jack
and Junk in the Trunk lol

12-13 mountain roads
17-18 City
20-23 Speeding on the freeway

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2004 KJ Sport 4x4 Black
245/70/16 Grabber AT2's
2.5" Daystar Spacer Lift w/ Ranchos
Mopar Skids
Hi-Lift
http://www.cardomain.com/ride/3202356


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 Post subject:
PostPosted: Sun Jan 04, 2009 8:54 pm 
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Joined: Mon Apr 07, 2008 4:48 pm
Posts: 182
Location: Las Vegas
I do mostly city driving 70/30. I usually get between 14.5-15.5. BDS 2.5 lift with 245 75 tires.

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 Post subject:
PostPosted: Wed Mar 11, 2009 12:20 pm 
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Joined: Fri Jun 06, 2008 7:39 am
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Location: Halifax. Nova Scotia
I got the mopar skids, and step bar / rock rails. Usually about 40lbs in the trunk lol, and currently 235/70/16 x-ice tires on steel rims. I get about 14 or less. I'm going to be watching it very closely soon, the tires are going to KM2s on alloys, taking the 40lbs out of the trunk, and doing a oil filter change, new air filter, and probably a coolant flush. Will get it in for a alignment soon as well..... I hope it goes up :S

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http://www.cardomain.com/ride/3111598


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 Post subject:
PostPosted: Wed Mar 11, 2009 8:13 pm 
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C Class 245/75/16 Revo's, OME lift, Aero exhaust, skids. Winter all city ~10,11 Spring all city(Hard on the skinny pedal) 14,15:16,17 if being gentle.

Good weather all interstate at ~75,maybe 80 = ~22,23 (Talking 400 mile trips): If short trips ~one hour.. then maybe 18,19

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OME HD lift w/ 1/8" Clevis lift
LT 245/75/16 Revo's
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 Post subject:
PostPosted: Mon Mar 23, 2009 7:53 pm 
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Joined: Thu Jan 01, 2009 10:23 am
Posts: 120
Location: Bismarck, ND
Averaging about 15mpg's, mixed driving

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'03 Liberty Renegade
119,000 miles
K&N Drop-in
Factory Skids
Towing Package
245-70-16 BFG All Terrains


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 Post subject:
PostPosted: Mon Mar 23, 2009 8:29 pm 
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Joined: Fri Jun 06, 2008 7:39 am
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Location: Halifax. Nova Scotia
Few weeks ago measured a tank averaged 20 highway then dropped to 18 city. Next week got the KM2s and didn't get 18 even highway. Gonna get a alingment and a new air filter soon, maybe do a oil filter and measure it again. Hoping it was my driving not the KM2s lol

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http://www.cardomain.com/ride/3111598


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 Post subject:
PostPosted: Mon Mar 23, 2009 9:56 pm 
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Joined: Sun Feb 01, 2009 2:29 am
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Location: Hillsborough, NC / Petersburg VA
between 18-19 highway ~ 65mph

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03 Renegade (Black)
177k miles 3.7L gas - 45RFE
Command Trac / 4.10s
Lift: ft. 790+ rr. JBA4+
The last of the TrailReady Front&Rear Bumpers and TR Rock Rails
Jarhead Offroad light covers
31x10.5R15 RedLetter Grabbers on Blackrock Dunes
L.O.S.T #KD098632


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 Post subject:
PostPosted: Thu May 07, 2009 5:04 pm 
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Joined: Thu Apr 16, 2009 2:17 pm
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Location: Cle Elum, Washington
Dayum guys. CRD's forever.

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2006 KJ CRD Ltd - Suncoast, GDE Eco, EGR Delete, After market T-Stat, Skid Row skids, V6 airbox, 2.5" Turbo back
2005 KJ CRD Sport-Suncoast, Transco, GDE Hot-GDE Trans, EGR Delete, Skid Row skids, V6 airbox, 2.5" Turbo back, After market S-Stat
1987 Suzuki LWB Samurai -diesel powered, custom 4 link coil suspension 38.5 SX Swampers


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 Post subject:
PostPosted: Thu May 07, 2009 5:29 pm 
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Location: Colorado Springs
CRD Joe wrote:
Dayum guys. CRD's forever.
Just wait till you mod the CRD,bye-bye mpg's.Might squeak 20-22mpg's on the highway which is no better then the 3.7 when equally modded.


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 Post subject:
PostPosted: Thu May 07, 2009 9:37 pm 
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Joined: Thu Jul 07, 2005 2:11 pm
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Location: Grand Rapids, MI
About 13 city/16 hwy. 2" lift, 235/70 a/ts, 3.73, 45rfe, 3.7. No skids, est 4300 lbs. Thinking I need to change my fuel filter and balance my tires.

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2002 Jeep KJ Sport 3.7L 4x4

245/75-16 Mastercraft Courser HSX, 16x7 Cragar, 2" OME MD Lift, ARB Bumper
AEM Brute Force Cold Air Intake, Flowmaster Super 44 Muffler

Currently working on: Full service on transmission & bed-lining ARB bumper

viewtopic.php?f=43&t=84650


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 Post subject:
PostPosted: Thu May 07, 2009 9:55 pm 
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Joined: Thu Feb 05, 2009 6:15 pm
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Location: SARANAC, MI
I'm at 16 mixed at 70% around town 30% highway 21 highway up from 20 when i put on the bigger tires.

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SOLD!!!
2005 Liberty Renegade
STT CustomSTUFF
4" Stump Lift.
JBA UCA's
245/75/16 GOODYEAR DURA TRACS


Thanks for throwing me under the bus Evil... Just remember this when you decide to turn yours back in to a... Real Jeep.


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