Mpg ??? - 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 08-08-2012, 12:58 AM   #1
Jeeper
 
vertical horizons's Avatar
 
Join Date: Apr 2012
Location: Houston, Tx
Posts: 1,610
Mpg ???

This is not a flame.
I am not trying to insult anyone. I am just looking for some answers before I buy a Jeep.

I am considering purchasing a TJ to use as my daily driver.

I would have thought that the fuel mileage would have been better than what it is. (Not counting roughing it on a trail, etc.) Just normal 2WD driving.

It would be a normal assumption to expect poor MPG while in 4WD. After all, the idea here is to have fun. I have no problem with that.

I presently own a 2002 F-150 Super Crew Cab XLT that gets around the same MPG, city & highway. Is this due to the non-aerodynamic design of the jeep? Of course, my truck isn't aerodynamically shaped, either.

I just figured that, since the Jeep is a smaller vehicle, has a 4.0L (instead of my 4.6L), is a 6-cylinder, instead of my 8 cylinder, I thought that the Jeep would get better fuel mileage.

Again, this is not meant to be a flame.
I like the Jeep.
I am looking forward to getting one in the near future.

If bad fuel mileage is the way that it is, then so be it.
I'm already doing that with my truck.
At least in the Jeep, I'll be doing it with class.

vertical horizons is offline   Quote Quick Reply
Old 08-08-2012, 02:49 AM   #2
Jeeper
 
Join Date: Jun 2012
Posts: 278
Wrangle are less aerodynamic than just about any truck ive seen - short of some lifted monsters.

Smaller engine plus poor aerodynamics and a few other things means a harder working engine, ad any heavy mods and it gets exponentially worse.

Just the nature of the beast.

Sccrbrg is offline   Quote Quick Reply
Old 08-08-2012, 03:31 AM   #3
Jeeper
 
Coljag's Avatar
 
Join Date: Jan 2012
Location: Whangarei, NZ
Posts: 115
MPG Who cares, it's a jeep isn't it.
Coljag is offline   Quote Quick Reply
Old 08-08-2012, 05:36 AM   #4
Jeeper
 
Join Date: Mar 2012
Location: Central Pennsylvania USA
Posts: 64
Bought a 2005 LJ 5 months ago for a DD. 4.0L I get 17 to 18 pretty consistently, no matter what I'm doing. 19.5 if I draft a truck on the Interstate.

Running without doors and the top is awesome- -can't do that in a Prius!

Oh, and the Just Empty Every Pocket phrase....well its true. You're either buying something you want to install, or something you need to install. But they are a pretty basic machine, so most things you can do yourself.

(My wife's DD is a Prius - gets 50 MPG, for a CAFE of 33.5MPG.)
robrat is offline   Quote Quick Reply
Old 08-08-2012, 06:19 AM   #5
Jeeper
 
kshaws21's Avatar
 
Join Date: Jun 2011
Location: Northeast Ga. Mountains
Posts: 1,100
The engines in Wranglers are very very reliable, the payoff is they are very inefficient. Aerodynamics play a huge role as the large straightup front end and windshield is just a giant brake, kinda like the flaps on wings of planes they raise during landing. The Jeep is fighting the air pressure just to traverse the highway. Look at the big V8 in the Corvette getting 25-28mpg. The engine only has to do its job without having to worry much about fighting the air the car is driving through. Put that same engine in a Jeep, it will get nowhere near the same mpg. It's just the nature of the beast.
kshaws21 is offline   Quote Quick Reply
Old 08-08-2012, 07:24 AM   #6
Jeeper
 
JLRTech's Avatar
 
Join Date: Aug 2012
Posts: 64
They are heavier than they look, too... ~4300 lbs, I believe. Mileage is not great, but there are trades that make it worth it. Fun factor, reliability and they are just unstoppable. Also, you can make it uniquely yours. There are buy-and-bolt addons, but the vehicle is basic enough that you can make your own additions for looks or function. I don't dispute your economy statement. You are quite correct. All I can say is that for me, it's a good trade.
JLRTech is offline   Quote Quick Reply
Old 08-08-2012, 08:50 AM   #7
Jeeper
 
vertical horizons's Avatar
 
Join Date: Apr 2012
Location: Houston, Tx
Posts: 1,610
Quote:
Originally Posted by JLRTech View Post
They are heavier than they look, too... ~4300 lbs, I believe...
Good point.
I didn't think about that.

Quote:
Originally Posted by JLRTech View Post
... there are trades that make it worth it. Fun factor, reliability and they are just unstoppable ...
I have always heard good things about Jeeps.
I guess that is why they have been around for such a long time.
vertical horizons is offline   Quote Quick Reply
Old 08-08-2012, 12:26 PM   #8
Jeeper
 
mt miner's Avatar
 
Join Date: Jul 2012
Posts: 17
18-19 mpg with my 03 wrangler

I bought an 03 Wrangler Sahara, with the 4.0,and the automatic transmission, and Im averaging 18-19 mpg just driving around the county, and up gravel roads in the mountains. I thought I died and went to gas mileage Heaven ! My 07 f-250 only gets 12 with the same kind of driving.
mt miner is offline   Quote Quick Reply
Old 08-08-2012, 01:31 PM   #9
Jeeper
 
tomcahuita's Avatar
 
Join Date: Jun 2011
Location: Cahuita, Costa Rica
Posts: 44
Images: 7
Send a message via Skype™ to tomcahuita
Just watch this and be happy about your mpg. This one makes about 2 mpg
__________________
Life is sweeter in Cahuita
tomcahuita is offline   Quote Quick Reply
Old 08-08-2012, 01:52 PM   #10
Jeeper
 
Texas2070's Avatar
 
Join Date: Mar 2012
Location: Starlight, IN
Posts: 162
2000 manual Wrangler. Lots of hills to coast down so I get 20-21 mpg
Texas2070 is offline   Quote Quick Reply
Old 08-08-2012, 02:54 PM   #11
Jeeper
 
Bone's Avatar
 
Join Date: Mar 2011
Location: Crestview, FL
Posts: 325
Mine's a 2004 LJ, stock with 31" tires and aTrek-top NX. I get 14MPG city/18MPG highway. Just remember, someone on this forum once said, the SMILES per gallon outweigh the MILES per gallon.
__________________
The Air Force FINALLY sent me back home to Florida. Ahhhh, Emerald Coast sugar sand.
Bone is offline   Quote Quick Reply
Old 08-08-2012, 03:04 PM   #12
Jeeper
 
Skol-Vikes's Avatar
 
Join Date: Nov 2011
Location: Clay Co, MN
Posts: 66
98 4L manual, non-dd, 3inch lift on 31's with 3.73 gears, always comes in 18.5-19. I live about 25 miles from town and I use the jeep to run in once a week or so. Also I really don't run the jeep over 65mph, I usually take the 2-lane highway into town 55mph road.
__________________
1998 TJ-4L-5sp, 3inch Black Diamond W/ 33's GY Duratrac on MT Classic III's., Warn 8K# Winch.
Skol-Vikes is offline   Quote Quick Reply
Old 08-08-2012, 06:09 PM   #13
Jeeper
 
Join Date: Dec 2009
Location: Penn Yan, NY
Posts: 37
05 4.0 with 6sp and I get 17.5.
terpsmandan is offline   Quote Quick Reply
Old 08-08-2012, 06:42 PM   #14
Jeeper
 
Some Farkin Guy's Avatar
 
Join Date: Jun 2012
Location: Northern Kentucky
Posts: 278
I have an 05 with the 4.0 and 6 speed. At first i got about 15 while I was learning the gearbox, but now I get around 18 or so. I've found that leaving the top on adds about 2-3 mpg, but where's the fun in that?
Some Farkin Guy is offline   Quote Quick Reply
Old 08-08-2012, 07:37 PM   #15
Jeeper
 
Fireaxe's Avatar
 
Join Date: Aug 2009
Location: METRO ATL
Posts: 1,159
Last calculation 16.
2000 Tj Sport 4.0 auto
__________________
United States Coast Guard
Support Search and Rescue...GET LOST!
Fireaxe is offline   Quote Quick Reply
Old 08-12-2012, 12:44 AM   #16
Jeeper
 
vertical horizons's Avatar
 
Join Date: Apr 2012
Location: Houston, Tx
Posts: 1,610
I saw a Jeep classified ad where the owner had swapped the motor with a 350.
I wonder what THAT would do to the MPGs ...

I think I'll just stay with the stock motor that comes with the Jeep, and empty my pockets on other mods.

(Just wondering about that larger motor vs. MPGs, though.)
vertical horizons is offline   Quote Quick Reply
Old 08-12-2012, 12:55 AM   #17
Jeeper
 
CMA_Rider's Avatar
 
Join Date: Feb 2010
Location: Hixson, TN
Posts: 3,167
Send a message via Yahoo to CMA_Rider
Ive gotten as low as 12 (pulling a trailer) and as high as 23

__________________
2003 White TJ Sport 4.0 5 speed D44 w/ Aussie Locker 3.73 tow pkg 3"BDS, 4"N20 Shocks 1.25bl 1.25mml Swaybarless-F&R 33x12.50r15
2001 customized Suzuki Intruder 1500 100hp Harley Killer
70 CJ5 Build
CMA_Rider 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




Download our Mobile App

» Featured Product

All times are GMT -5. The time now is 03:05 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