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Old 03-08-2011, 03:29 PM   #1
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Gas mileage

I'm sure we're all feeling the crunch these days. What's everyone doing to get the best gas mileage? What can we do?

Fuel economy and Jeep are not typically used in the same sentence, I realize. Still, I'm sure that there's something someone has done to get from 17 to 19 mpg.

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Old 03-08-2011, 04:04 PM   #2
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What is this nonsense? I get thirteen mpg!

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Old 03-08-2011, 09:34 PM   #3
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I have a stock 2010 Wrangler Unlimited 4WD with 6 speed and 3.73, currently has +- 1,900 miles.
I keep the tires on 40-42 psi.
I typically shift before 3,000 rpm
I usually drive rural / surburbs and have been getting 19 MPG to & from work.
Current tank average MPG is 20.2 as shown on dash.
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Old 03-08-2011, 09:41 PM   #4
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Current tank average MPG is 20.2 as shown on dash.
14 for me
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Old 03-08-2011, 09:43 PM   #5
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I don't even want to tell you guys what I get. I wold love to get as high as 14 LOL
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Old 03-08-2011, 09:50 PM   #6
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I'm getting about 16.5 mpg with my 97' 4.0 5 speed, would a leak in the manifold affect my mileage at all?
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I live in philly and there is no way I'm leaving my top down and doors off anywhere around here! Maybe for small trips where I'm not moving far from my jeep I can't watch it with my eyes. Can't trust people no matter where you live! Unless you live in Canada lol
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Old 03-08-2011, 09:57 PM   #7
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i get between 14-16 with mine.
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Old 03-09-2011, 01:58 AM   #8
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Getting around 10mpg at the moment. I am having to use it as my daily driver right now as well.
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Old 03-09-2011, 04:07 PM   #9
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I'm getting about 16.5 mpg with my 97' 4.0 5 speed, would a leak in the manifold affect my mileage at all?
Just went through my second tank of fuel and am getting 18.2 mpg. That first tank there might have been a little playing in some snow here an there
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I live in philly and there is no way I'm leaving my top down and doors off anywhere around here! Maybe for small trips where I'm not moving far from my jeep I can't watch it with my eyes. Can't trust people no matter where you live! Unless you live in Canada lol
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Old 03-10-2011, 11:11 PM   #10
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we got a '05 tj, 4.0 automatic. 18mpg. there has to be something to get it up a little?????
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Old 03-11-2011, 05:23 AM   #11
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Current tank average MPG is 20.2 as shown on dash.
By the time I went to fill up the tank, the dash displayed 19.5 MPG; I decided to check it myself and it was 18.6 by my calculation. The display is usually a little optimistic the couple of other times I've figured it myself it was about .5 off.
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Old 03-11-2011, 05:34 AM   #12
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Old 03-11-2011, 06:33 AM   #13
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13-14 I've been starting to drive at 60-65 instead of 65-70. Its helping.
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Old 03-11-2011, 07:04 AM   #14
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Ok, this thread has some if the same questions I have... I have a 2011 sport, I use a app on my phone to track my MPG and I know it is still new but I and getting 15 - 16 MPG per fill up. I also have thus 'eco' feature and my question does anyone use it? I have since I got the jeep... But I'd I don't keep it in Eco on, I would like to know does the MPG go up or down?
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Old 03-11-2011, 07:22 AM   #15
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I was getting 18-19mpg, but as soon as I put my 33" M/Ts, I lost about 4mpg. So as of right now, I'm at a good ol' 15mpg!!
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Old 03-11-2011, 07:55 AM   #16
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Quote:
Originally Posted by im-ocd View Post
I have a stock 2010 Wrangler Unlimited 4WD with 6 speed and 3.73, currently has +- 1,900 miles.
I keep the tires on 40-42 psi.
I typically shift before 3,000 rpm
I usually drive rural / surburbs and have been getting 19 MPG to & from work.
Current tank average MPG is 20.2 as shown on dash.
I agree. I have to shift at 3000 RPM. Some headers would a little too. A new exhaust system would help also.
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Old 03-11-2011, 08:42 AM   #17
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Pretty much all factory on my Jeep except the NGK Wires/Plugs I put in last week. With the old plugs tooken out (4 were completely shot in the center) and the new NGK plugs put in my mileage jumped up 5 mpg from 12 to 17. Which I calculated at a empty tank from me putting in 15 gallons after the plug change.

Also, the jeep came with the muffler broken off right after the CAt, might have a thing to do with it .

Other than those 2 things, I'll be putting a aftermarket intake on the jeep sometime in the coming months to replace the one thats on it
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Old 03-11-2011, 12:08 PM   #18
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Old 03-11-2011, 12:10 PM   #19
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My neighbor installed a brown gas kit in her Ford F250 (Gas) and she now gets 725 miles to a tank. The whole cost including installation ran her about $300. This was three years ago now and as far as I know, she's loving every mile of it.

I'm considering one of these as well.

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