Gas consumption while offroading - JeepForum.com
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post #1 of 29 Old 07-12-2019, 06:32 PM Thread Starter
dcoop
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Gas consumption while offroading

I got some friends that I wheel with and they have jeeps also. Sometimes we drive our jeeps to the trails and I average around 13 1/2 mpg on the highway, better than the other jeeps. But when we start trail riding my jeep will suck the gas down while there jeeps hardly use any. Could this be caused by a bad o2 sensor or something or is my jeep back a** wards.

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post #2 of 29 Old 07-12-2019, 06:41 PM
Duck Doctor
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Your rig should get poor fuel mileage off-road. My TJ gets two MPG when doing serious off-roading. I’m talking trails that you only make a mile of progress per hour.
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post #3 of 29 Old 07-12-2019, 07:10 PM
Jerry Bransford
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You can't be worrying about mpg when offroad. Think about it... you're never out of 1st or 2nd gear and usually you're in 4Lo which creates nearly 3x to 4x the rpms at the same speed they'd be in 2wd.

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post #4 of 29 Old 07-12-2019, 07:32 PM
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You can't be worrying about mpg when offroad....d.
You need to worry about it if range is an issue.
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post #5 of 29 Old 07-12-2019, 07:36 PM Thread Starter
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I figured it was normal cause my motor runs good. Was just trying to think why, but it makes sense. If were on a 2 or 3 day wheeling trip I can usually run in somewhere and top off my tank which I like to do anyway.
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post #6 of 29 Old 07-12-2019, 07:47 PM
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You need to worry about it if range is an issue.
With the type of offroading Jerry is talking about, gallons per hour may be a better number to know than MPG. Either way, a working gas tank level gauge is essential.
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post #7 of 29 Old 07-12-2019, 07:51 PM
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Compare how your buddies drive and operate their Jeeps to how you do -- what's different? Do you tend to leave the Jeep running a lot when you're not actually moving? Do you keep the revs higher? Do you run the AC or a bunch of electrical accessories a lot? Do you have a leaking tank filler neck or fuel cap?

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post #8 of 29 Old 07-13-2019, 12:14 AM
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You probably just have your windows up and AC on, while you're waiting for your buddies to winch you out of the mud.
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I'd rather knock myself unconscious, cut a finger off, poke my eye out with a sharp stick or be forced to go back to work than install anything made by Rusty's.
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post #9 of 29 Old 07-13-2019, 05:55 AM
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Highway gears can effect off road mileage just like off road gearing can effect highway mileage.
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post #10 of 29 Old 07-13-2019, 06:29 AM
hokahay
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With the type of offroading Jerry is talking about, gallons per hour may be a better number to know than MPG. Either way, a working gas tank level gauge is essential.
I think Jerry goes by Rocks/hr.
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post #11 of 29 Old 07-13-2019, 08:54 AM
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Highway gears can effect off road mileage just like off road gearing can effect highway mileage.
highway gears and offroad gears?


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post #12 of 29 Old 07-13-2019, 11:19 AM
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I've never needed to worry about fuel while off road. I thought I did when I bought an enormous tire and jerry can carrier. But in 5 years of exploring the western US, I never ran out of fuel unless I intended to.

A couple weeks ago, I finally sold the heavy carrier and shed well over 100lbs.

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post #13 of 29 Old 07-13-2019, 11:21 AM
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Quote:
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Quote:
Originally Posted by Goatman#1 View Post
Highway gears can effect off road mileage just like off road gearing can effect highway mileage.
highway gears and offroad gears?
The two are not at all mutually exclusive. Low gears for everything!
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post #14 of 29 Old 07-14-2019, 06:14 AM
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I think Jerry goes by Rocks/hr.
He prefers the scenic routes.
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I'd rather knock myself unconscious, cut a finger off, poke my eye out with a sharp stick or be forced to go back to work than install anything made by Rusty's.
03' Rubicon/Zone 4.25" combo lift/Rancho 9000XL shocks/5.13 gears-35" MTZs/BM brakes
99' XJ on 33s. #18
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post #15 of 29 Old 07-14-2019, 07:51 AM
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3.73's may help keep rpms for the road but you have to work the engine harder off road . 5.13's may help you on the rocks but you work the engine harder trying to go 70 on the highway. Have you guys really never heard the term? A Nova that came with 3.07's had highway gears. 4.10's for power on the strip. Seriously? That's what everyone around here has called them since I was a little pup. Probably earlier. And I'm a fat old porch dog now.
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