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Old 07-11-2010, 04:24 PM   #1
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Gas Mileage

Just a general question here. I drove about 3 hrs one way and 3 hours back to my house on a small trip i took. It took about $70-80 in gas. I was driving anywhere from 70-80mph at which i am from about 3100-3400rpm. I just recently got the jeep so i am a new owner. When compared to my old car which is a 4cyl. this jeep eats gas. So anyways does that sound excessive to anyone? Its a 4.0 Inline 6. Anything about the rpm or gas mileage sound way to high?? If i drive about 30 miles one way and about 30 back prob takes about 20 dollars in gas. Any info would b greatly appreciated. Ty.
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Old 07-11-2010, 04:40 PM   #2
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You might try slowing down some. If I drive mine that fast it burns a lot more gas. Mine gets the best mileage around 60 to 65 MPH.

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Old 07-11-2010, 04:45 PM   #4
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^x2, Jeeps were not meant to travel at 80mph as far as I am concerned. To keep it at the speed you have to keep you foot in it all the time. They are about as aerodynamic as a small house, so if you want to travel at those speeds be prepared to pay for it when you get to the pump.

Mine appears to get the best mileage around 55-60 mph from what I have seen, 4.0 5 spd stick.
"Time you enjoy wasting, was not wasted"- John Lennon

"The Jeep is a manly device. And a womanly device. An American device. It’s a fitting instrument to transport the free people of a free nation with the respect to which we are entitled and the dignity that we deserve. Okay, we’re a little crazy to have a Jeep for a daily driver. But if we go off our meds, we might wind up in a Prius"-P.J.O'rourke
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Old 07-11-2010, 05:14 PM   #5

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What Wildkarde said - I do *GREAT* at 55-60. Over that, I'm sucking fuel like coffee or beer... On the interstate (65-70 MPH limit), I'm the guy that everyone passes... (except in the winter, when I'm the one that everyone flags down for a pull )
In dog beers, I've only had one.....
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Old 07-11-2010, 05:46 PM   #6
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Slowing Down is the answer
I try to stay 65 or under if I can and normally get in the 17-19 mpg range - If you think you have to drive 80 - I'll go by while you are filling up
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Old 07-11-2010, 05:59 PM   #7
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I went on a 400 mile trip (one way) back in April... I averaged between 17-18mpg the entire trip even driving through Indiana which has a 70 or 75mph speed limit. I tried to stay as fast as traffic which meant running 75-80, but sure wasn't trying to pass everyone like I used to do in my old truck.

4.0, 5 spd 3.73 gears with 31's (and yes, the speedo has been calibrated and checked for proper calibration)...I averaged around 16.9 running 60-65 tops but with a little more stop and go and 17.9 running 65-80 with no stop and go.
"We don't build great brakes because we think you don't know how to drive, we build them for the guy on the road in front of you that doesn't." - Black Magic Brakes
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Old 07-11-2010, 07:02 PM   #8
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Check out this chart to see if your gear ratio matches your tire size. :: Gear Ratio & Tire Size Chart
'00 TJ Sahara 4.0L, 3.5" RE Superflex, 1'' Body Lift, 35" Mickey Thompson MTZ's
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Old 07-11-2010, 07:58 PM   #9
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I drive a wrangler to force my self to stay 65 or under. It's my daily driver and I drive 100 miles a day commuting which is about 5 gallons a day at whatever price you can get. If you need more mileage get a Corolla.
Retired my 94 YJ 4cyl 5spd @ 200K
Now in a 04 TJ 4cyl 5spd CV @120K+
Both as a commuter vehicle in NW, NJ
April 2012.downsized and now a 99er.
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Old 07-12-2010, 01:56 PM   #10
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Hehe ok thanks everyone i guess thats the problem then. I do notice when i travel on regular roads i really dont waste much but yea the interstate sucks it down fast. Ty all i just didnt know if it was me or not. My tires are stock btw so im sure the gear ratio for the tires is fine unless they screwed it up from the factory hehe. It is an automatic to which sucks but the jeep was free for graduation hehe.
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Old 07-12-2010, 02:15 PM   #11
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my 06 gets great gas mileage compared to my last DD, ram 2500 V10.....
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Old 07-12-2010, 02:27 PM   #12
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yeah, jeeps really arent geared right to be going that fast especially if you have the AT...i like to do between 60-70, anymore and it sucks down the gas........The other part where you go 30 miles out and back and it taking $20 in gas is kinda crazy. 60 miles shouldnt take 8-10 gallons of done a tune up or anything recently?
1997 Jeep Wrangler Sahara
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Old 07-12-2010, 02:53 PM   #13
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Have you ever checked out the aerodynamics of the wrangler? It is sort of like a sheet of plywood. Slowing down will certainly help with the mileage.
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Old 07-12-2010, 02:56 PM   #14
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Check your air filter......


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