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First off, I know not to expect great gas mileage out of my Jeep, I knew that going in. However, i've been getting and average of 14 MPG combined city/highway (mostly city - Los Angeles). I don't have a heavy foot, in fact, i've driven with RPMs in mind to see if I can get my mpg up to the 16-17 mpg range. It's not taking away from the fun of ownership, I'm LOVING owning the Jeep, just feel my MPGs should be a little higher.

2014 JKUR with 3,000 miles
- Stock tires aired down to 32 psi (cold)
- 1.5" wheel spacers
- no lift
- new front mid width bumper, front skid plate, winch, no other added weight
- mostly city driving

Shouldn't I be getting a little higher than 14 MPG???
 

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My 2014 JKU Sahara w/3.73 gearing is stock and I'm getting 18-19 MPG in the city with stock tires, 37PSI and no mods yet. I would expect a slight drop if I aired down the tires and added weight. 14 seems like a bigger drop than I would expect.... What were you getting before added the bumper, winch and aired down your tires? What Octane gas are you running? I put in the cheapest 87 Octane I can find.
 

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I got a 2013 JKUR auto with 3.73, teraflex leveing kit, all else is stock. I'm getting around 15, combined city/highway. I got it up to 17.3 once and only once. but loving every minute of it
 

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Rubicon tires have pretty high rolling resistance and maybe a little heavier than Sahara tires too, that is probably part of the difference. Also he still has a pretty tight engine, the tolerances should loosen up a bit over the first 20k miles and hopefully he will see 16 or so in town.
 

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2013 Rubi 4.10's...37's

I drive 59 miles per hour headed south on the 405 at 6:30am.....................21mpg

If you go 60 or more miles per hour......it drops big time.
 

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First off, I know not to expect great gas mileage out of my Jeep, I knew that going in. However, i've been getting and average of 14 MPG combined city/highway (mostly city - Los Angeles). I don't have a heavy foot, in fact, i've driven with RPMs in mind to see if I can get my mpg up to the 16-17 mpg range. It's not taking away from the fun of ownership, I'm LOVING owning the Jeep, just feel my MPGs should be a little higher.

2014 JKUR with 3,000 miles
- Stock tires aired down to 32 psi (cold)
- 1.5" wheel spacers
- no lift
- new front mid width bumper, front skid plate, winch, no other added weight
- mostly city driving

Shouldn't I be getting a little higher than 14 MPG???
Check out a few of the MPG threads. If you find a single thread where the forum advice helped the OP increase his/hers mileage then you a are lucky JK owner. :D
 

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Mine is a 2013 JKR, stock tires, aired to 39 psi cold.
I run about 50/50 in town and highway. My highway driving is in the mountains, of which I drive about 70 mph average. My fuel mileage is about 20.5 average.
On take offs, I am also easy on the throttle.

Your JKUR is about 400 lbs. heavier stock apples to apples, (plus you have added extra weight bumper, winch, skid, and 32 psi), so this is part of your issue, but I would think that you should still be into the 16-17 range. I would try airing my tires up to at least the recommended 37 psi cold!!!!!!!!

Tire gauges also vary, so make sure that yours is accurate. I have 5 gauges, and only one of them was accurate, when measured against Discount Tires Master!!!!!!
 

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Our mileage was about the same as yours at 3000 miles. It has gotten a bit better as the engine has broken in.
 

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Discussion Starter #13
My 2014 JKU Sahara w/3.73 gearing is stock and I'm getting 18-19 MPG in the city with stock tires, 37PSI and no mods yet. I would expect a slight drop if I aired down the tires and added weight. 14 seems like a bigger drop than I would expect.... What were you getting before added the bumper, winch and aired down your tires? What Octane gas are you running? I put in the cheapest 87 Octane I can find.
Thanks for all the input. I guess I'm not way off where I should expect to be.

I forgot to add I have 4.10 gears. I use 87 octane fuel.

Still loving my ride. I guess I'll start looking at the road and not my gas mileage :)
 

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Try airing up the tires a bit, a few members posted their psi, I'd try increasing the pressure. It is probably the easiest most effective way there is to increase mpg. Years ago I remember a few mechanics I knew who would increase the air pressure in tires of vehicles they tuned up. It wasn't because they were checking the air, it was them hoping their customers would notice an improvement in the way the vehicle ran.
 

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I have a 12 JKR with 2.5 AEV lift, AEV front and rear bumpers with tire carrier and winch and 4:10 gears with stock tires at the moment. I keep my tires at 37psi and 90% is city driving. I work hard to get 16mpg.
 

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I have never gotten noticeable better mpg from new on any vehicle and I have over 20 new vehicles (cars,trucks) and over 25 new motorcycles going back to the 70's. California gas probably sucks. Other then off roading I have never averaged less then 15mpg and I live where 75mph is the norm. I have about 16000 miles on my 14 jkur. I have 2" lift 4.10 auto and 34" tires for reference. I have no trouble getting an honest 19mpg (hand figured miles/gallons) when keeping it 65-70mph. Sounds stupid but I get better mpg with the air off and windows rolled up.
 

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"your mileage will vary..."

My JKU is a daily driver and I commute around 75/miles per day. I have a set of "street" tires for when I commute and will change the tires back to my "offroad" tires when going on trails. I will typically get 17 around town and 20-21 plus or minus when on the freeway with no hills, no headwind and keeping the speed around 55/mph. Suspension is stock but have added a Warn PowerPlant winch on front. My JKU is a 10A (2013) with 4.10 gearing.

However, when making the same trips with my "offroad" tires my average drops 3-5 mpg pretty consistently. Tire diameter for both tires is within 1/2" of each other.

KG6SLC aka Eugene
 

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Lot of good points in here....only thing I didn't see mentioned...and it may not apply...but from what I remember about LA from 10 years ago the time of day of your commute is HUGE!! and no where else I have been anywhere (except NY City) have I seen the slow moving "rush hour traffic" you guys have....please keep that in mind when we say we get 17-19 mpg in town!! Good Luck!!
 

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Thanks for all the input. I guess I'm not way off where I should expect to be.

I forgot to add I have 4.10 gears. I use 87 octane fuel.

Still loving my ride. I guess I'll start looking at the road and not my gas mileage :)
Change your EVIC to display temperature. It's a lot higher than the fuel economy. :)
 
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