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Discussion Starter · #1 ·
Looking for 2014 V8 MPG's from new owners. If you could please post your City & Highway miles and whether you drive like an old lady, a 17 year old on streoids or somewhere in between.
Thanks!!
 

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Normal driving, however mostly HWY miles, average is between 16-16.5.
 

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3 fill-ups, with about 70% HWY/30% City driving, in hilly and twisty roads.

1<SUP>st</SUP> tank = 15.6 MPG<O:p></O:p>
2<SUP>nd</SUP> tank = 16.1MPG <O:p></O:p>
3<SUP>rd</SUP> tank = 17.6 MPG (Avg. 20.1 HWY on a 125 mile trip, when I first filled up) <O:p></O:p>

I’m pretty happy with those numbers so far, and now that I’m a little past the 1000 mile break-in, and my foot is getting a little heavier, I’m hoping the numbers equalize to about 16.5MPG or so.
 

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Normal driving, however mostly HWY miles, average is between 16-16.5.
Hmmm seems like the 8 speed doesn't add much as far as fuel economy goes. My "aerodynamic as a refrigerator box" Commander, with the non-VVT HEMI gets 16.4 mpg on the highway.

Have you checked your tire pressures since you picked up your Jeep, often they are delivered by the dealership a bit underinflated to "improve" the softness of the ride.
 

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Averaging 14-15 MPG and I'm doing roughly 80% City 20% Hwy. Just broke 900 miles last night.
 

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Hmmm seems like the 8 speed doesn't add much as far as fuel economy goes. My "aerodynamic as a refrigerator box" Commander, with the non-VVT HEMI gets 16.4 mpg on the highway.

Have you checked your tire pressures since you picked up your Jeep, often they are delivered by the dealership a bit underinflated to "improve" the softness of the ride.
Tire pressure is at 39/40. Need to check and see what is recommended.

My wife's 2011 Hemi could only manage 15.4 so this is an improvement even if its not much.
 

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My wife averaged 17.8 one the first tank, mostly city and I use that tern loosely as we live in a small town not a city. I have no doubt it would be lower if I were driving it. Something else to note is that mine is a 2wd and I noticed the guys posting before me have 4wd's.
 

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Discussion Starter · #8 ·
3 fill-ups, with about 70% HWY/30% City driving, in hilly and twisty roads.

1<SUP>st</SUP> tank = 15.6 MPG<O:p></O:p>
2<SUP>nd</SUP> tank = 16.1MPG <O:p></O:p>
3<SUP>rd</SUP> tank = 17.6 MPG (Avg. 20.1 HWY on a 125 mile trip, when I first filled up) <O:p></O:p>

I’m pretty happy with those numbers so far, and now that I’m a little past the 1000 mile break-in, and my foot is getting a little heavier, I’m hoping the numbers equalize to about 16.5MPG or so.
Nice to see that the MPG's are going up. Getting ready to pull the trigger on a Limited. Looks like it might come down to a coin toss on the V8 or V6. I don't put many miles on my vehicle, so it would be about a $35 a month extra fuel cost and the $2k option charge for the V8.
 

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Last couple of fillups I checked my mileage; it was about 11 - all city driving; but I drive with Eco mode off and my right foot in it up to my kneecap. That's why I got the Hemi. :D
 

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Tire pressure is at 39/40. Need to check and see what is recommended.

My wife's 2011 Hemi could only manage 15.4 so this is an improvement even if its not much.
Hmmm I get 15.5mpg in my stop and go commute on the Commander. I consistenly get above 16mpg when the driving is all highway. Your wifes HEMI really should have been getting better since you had the VVT and a much more aerodynamic vehicle.

My tires are inflated to 36psi at 70F. One thing is, I am not running stock tires. I have the Goodyear Silent Armors. I would have thought that would have actually hurt my mileage since since they are a size bigger than stock and have a more aggressive tread.

What elevation are you at? My home elevation is 1100ft.

Other possible variations are that I run Mobil 1 full synthetic.

It's just kind of disappointing that all the things like VVT, a more aerodynamic body, and a much more modern transmission, don't appear to be really helping the HEMI mileage.
 

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Ouch, seeing these real world numbers so far does not help in favor of the V8 for my decision on which motor to get. I know the V8 was not gonna be good on fuel, but those numbers are almost disappointing. Well I guess since time isnt an issue for me, waiting for a used diesel later down the road could be a good decision.
 

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Hmmm seems like the 8 speed doesn't add much as far as fuel economy goes. My "aerodynamic as a refrigerator box" Commander, with the non-VVT HEMI gets 16.4 mpg on the highway.

Have you checked your tire pressures since you picked up your Jeep, often they are delivered by the dealership a bit underinflated to "improve" the softness of the ride.
looks like an improvement to me. I have a 2013 V8 Overland Summit and I average 13.5 MPG. I don't see how people are getting better mileage, but it seems like MPG are kind of like fish stories and tend to be exaggerated.
 

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I really don't understand some of these low figures...I truly get an average of 16+ in general rural warm weather driving (about 15 in the winter) and 20-21 on the highway at 70 mph max. These are calculated manually, but don't differ much from the EVIC on my particular vehicle.
 

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Depends on drive setup (2 wheel versus 4 wheel), air temp, tire pressure, altitude, tire size, wind conditions, terrain, etc...

But, most of it will depend on how they drive and the driving conditions.

My 09 V6, I am getting 15.6MPG combined, I shiver to think what I'd get with a Hemi.
 

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In the first 100 miles I am getting 15.5 mpg with mostly stop and go traffic so far.
 

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3 fill-ups, with about 70% HWY/30% City driving, in hilly and twisty roads.

1<SUP>st</SUP> tank = 15.6 MPG<O:p></O:p>
2<SUP>nd</SUP> tank = 16.1MPG <O:p></O:p>
3<SUP>rd</SUP> tank = 17.6 MPG (Avg. 20.1 HWY on a 125 mile trip, when I first filled up) <O:p></O:p>

I’m pretty happy with those numbers so far, and now that I’m a little past the 1000 mile break-in, and my foot is getting a little heavier, I’m hoping the numbers equalize to about 16.5MPG or so.
4th tank = 18.9MPG (90% HWY) - Ecomode on
 

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Discussion Starter · #20 ·
Thanks everyone for your input....I just ordered my 2014 JGC Limited, 5.7, Lux II w/ Navigation & 20" wheels, White ext./Black int. I will enter my MPG's as soon as I am on the road.
 
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