Jaydebe
Well-Known Member
87 Octane here. Modern engine mgt systems work well to balance out any knocking, etc.
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Help me understand what's going on with my MPG
- Thread starter Jeeperjamie
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Bob502000
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17 mpg here with lift, 37s, stubby front bumper and winch.So I've been real pleased with the gas mileage I've been getting since going to 315 70 17 BFG KO2s. Ran the 35 12.5 17 BFGs on my 2010 JKU with 3:73 gears and built and never saw over 15MPGs. So with my JT when I switch to the taller tire I removed the section leading up to the fender on the Foglight covers. I've been getting between 18-18.5 MPGs and I was happy with that.
Well last week I removed the front bumper and installed a Rugged Ridge full width spartan Bumper and a Badlands Apex 12000lb winch. Now I was expecting a drop in MPGs because of the weight and was completely going to be fine if it dropped down to even 17 MPGs. Now as of today on my way home I'm getting 19.1 MPGs in JT and nothing driving habits wise has changed or any of my routes. It's been warmer but other than that nothing else has changed. Does aerodynamics make that much of a difference because I feel like because the full width bumper closed that gap up again it caused the jeep to not have as much wind resistance. I can actually feel a difference with the wind blowing. If this is how it's going to be then I'm freaking super happy with my decision to by this truck. Any thoughts on anything else that could contribute to the MPGs going up.
Took both of these today. Took one when I hit 19 and the other about 20 minutes later when it went to 19.1. Can't believe it
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Jeeperjamie
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If I can get 17 if I decide to go to 37's I'll be happy. What brand 37 you running?
Bob502000
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Nitto Ridge Graps 12.50x37. This is also a Rubicon that has 4:10 gears. Yours might do a little better than mine. I have the 2" mopar lift on it.
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Jeeperjamie
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I got 4.10 gears with the Max tow and I got the 2.5" readylift installed. I'm just keeping a list of tires for if I decide to got to 37's. Gotta wait for the 35's to wear out first.
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noside85
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Awesome! Maybe we missed each other but I had an eye out. Did see a few white JTs but didn't remember any Rubis in particular.Hah, we were one of them! LOL
1st time off-road with the Gladiator, 2WD or 4H and I ran through the deepest sand I could find without being a dumbass. Although, I did use the OffRoad+ to see what it was.
Fuel Mileage wise: We drove across country with trailer and avg. 12mpg.
Now that we're moving in normal conditions and staying speed limit + 5-10 over, our fuel mileage is good.
Down to the beach and back, over 20mpg with the stock M/Ts.
Highway speeds over 75 kills the mileage, brings it closer to 16-17.
There were some really sugary sandy spots, just gotta be smart about it. I tried the same thing. Offroad+ the second time and feel like it helped. There was a Gator JT that couldn't make it up a sandy off ramp at first. Then they aired down (there were signs everywhere before telling you to) and lined up with the ramp for momentum after they saw a small Cherokee do it first. We had no problems.
Rwalk31
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Stop resetting your computer, you need to get a true average and if you keep resetting it you never will. Drive or for 2 weeks without a reset. Only reset if conditions change.
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Jeeperjamie
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I haven't reset my computer since I was at 500 miles, right after I had the lift and tires put on, I'm currently at 7300 miles.
Gobi Gladi8or
Active Member
I’m feel the same way
morejeepsthanicancount
Well-Known Member
Getting into 7th and 8th gear is where the fuel economy differs from city mileage. I've got a heavier rig than most gladiators, light on the pedal after initial acceleration(I do have a pedal commander) and I'm averaging 18 in the city with 35s. I just finished 450 round trip highway cruise(with a week of city driving around the beach) with 3 passengers, 2 large dogs, and the soft topper full to the brim with kennels and beach vacation stuff averaging 20.2mpg. I'll be regearing next week to 4.88s which I think will improve the mileage on the highway as I'll get back 8th gear more often. Light pedal after initial acceleration is where I saw the majority of my fuel mileage increase btw.
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