Gas mileage... - JeepForum.com
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post #1 of 22 Old 07-04-2009, 07:34 PM Thread Starter
Robb_
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Gas mileage...

What kind of mileage are yall getting highway? Last trip I went on I found out my mileage was off so I went off my GPS and I was getting like 21mpg. THought that was pretty damn good for the ole heep.

Oh and btw I have a 4" IRO and 32" bfg muds.

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post #2 of 22 Old 07-04-2009, 07:44 PM
befumo
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Damn good. Was getting 18 mpg city and 21/22 highway. Now im getting 16/17 city for some reason. Odd.

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post #3 of 22 Old 07-04-2009, 08:04 PM
01Limited45324
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I don't have off-road tires or any lift or anything, and I'm getting between 20-22 on the highway. That's with a heavy foot, though.

-Tom

2001 Grand Cherokee Limited
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post #4 of 22 Old 07-04-2009, 08:16 PM
dougy147
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I used to get 20-22 highway on my 4.7. I just had to do heads and now I seem to be getting 17-18 If I ever recover from the head job and am willing and able to spend 5 minutes under the hood I just might figure out why.

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post #5 of 22 Old 07-05-2009, 02:10 AM
Eldoradoman
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I can get 22mpg but only if I go 50mph, lol, about 17 at 80mph. 65 is a happy medium at 19mpg.

1998 Bright Platinum 5.9, 242 swap, go-fast goodies ,and 3" exhaust w/Super 40, SCT Tuner, 4" hybrid lift, 33" Claw TTC Radials
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post #6 of 22 Old 07-05-2009, 09:23 AM Thread Starter
Robb_
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Ok I was going around 75 in the hill country.
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post #7 of 22 Old 07-05-2009, 10:27 AM
1997JZ
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13/17 Mpg.

1997 GC Limited. 5.2L V8, Leather and Loaded. 249 to 242 Swap, Removed the Catalytic Converter.
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post #8 of 22 Old 07-05-2009, 10:39 AM
tsconver
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I got 19 at 65 yesterday on a long trip.

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post #9 of 22 Old 07-05-2009, 03:35 PM
terryj
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On the freeway @ 65mph I get about 22mpg, in town about 17mpg. I have the 4.0L
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post #10 of 22 Old 07-06-2009, 06:15 AM
Tweaks
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I have the 5.2 with 137k and I get somewhere between 17.5-17.6 for an average. It's probably a bit more city driving than highway. If I ever get a road trip in on the thing I notice averages around the the 20 range.

For those that are noticing a dip in mileage here's something to consider. It may not be your Jeep. It could be the type of fuel you fill it with. If you have a favorite place to fill up and use them on a regular basis, it's possible that their gas is junk. I had this issue recently. I always filled up at the same station every week and began to notice a drop off in mileage and performance. A friend of mine said he noticed the same thing with his truck and said he was going to find a new place to fill up and see if maybe we were just getting bad gas. Turns out, he was on to something. Once I changed gas stations my Jeep had better throttle response and fuel mileage.
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post #11 of 22 Old 07-06-2009, 06:55 AM
ezflip
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You guys are making me cry... I am averaging 13.8 with about 85%/15% city/highway mix with a bone stock 2000 4.0 I6. What gives?

~James

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post #12 of 22 Old 07-06-2009, 07:00 AM
WhiteOut
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Average 15.5 city with a 1995 V8 Limited, no highway yet.
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post #13 of 22 Old 07-06-2009, 08:55 AM
g-off70
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Quote:
Originally Posted by ezflip View Post
You guys are making me cry... I am averaging 13.8 with about 85%/15% city/highway mix with a bone stock 2000 4.0 I6. What gives?
that is about what i am getting. i think i am keeping my foot out of it for the most part. this is also with the AC cranked all the way up all the time. dang texas heat.
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post #14 of 22 Old 07-06-2009, 09:33 AM Thread Starter
Robb_
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Quote:
Originally Posted by g-off70 View Post
that is about what i am getting. i think i am keeping my foot out of it for the most part. this is also with the AC cranked all the way up all the time. dang texas heat.
Man gotta love that good ole texas heat and humidity.
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post #15 of 22 Old 07-06-2009, 09:40 AM
kingvm
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Quote:
Originally Posted by g-off70 View Post
that is about what i am getting. i think i am keeping my foot out of it for the most part. this is also with the AC cranked all the way up all the time. dang texas heat.
ditto for me....

05 Grand Cherokee Limited, 5.7 hemi, quadradrive II, Nav, 3" lift, JK Rubi wheels/tires, 4xGuard skids
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