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  #13  
Old 03-10-2015, 09:57 PM
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Re: What is everyone's MPG?

Quote:
Originally Posted by Evolv0 View Post
highway 20-23
city 14-16
Same here using the recommended 89 octane.

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Old 03-10-2015, 11:45 PM
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Re: What is everyone's MPG?

27.9 on diesel winter blend fuel. 60% highway / 40% town. Also loving the EcoDiesel.


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  #15  
Old 03-11-2015, 12:15 AM
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Re: What is everyone's MPG?

I get 23-25 on the highway, 16 in the city and 18 in my combined driving which is more suburban driving than either of the other two.
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  #16  
Old 03-11-2015, 07:35 AM
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Re: What is everyone's MPG?

I used to get 20-23 hwy and 15-17 city then I had some PCM update a little over a year ago and now i'm at 19-20 and 13-15 city. Many trips back to the dealer and no new PCM updates to get me back. They say my milage is in range so no fix for me.
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  #17  
Old 03-11-2015, 08:00 AM
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Re: What is everyone's MPG?

I am at 18.3 in mixed driving. Trip back from Virginia a week or two ago I got it up to 23 in snow and rain. The GC has been great so far.
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  #18  
Old 03-14-2015, 12:24 AM
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Re: What is everyone's MPG?

13-15 city during winter, 14-16 city during summer; 18-21 highway during winter, 19-23 highway during summer. The lower range of those spectrums were with 91 octane, 10% ethanol laced gas, which I try not to use. The higher ranges were with mixed 87/91 octane gas (no ethanol). I usually try to fill up around half a tank, and alternate between the two octane levels, so that they will roughly equal 89 octane.

All 89 octane available out here has 10% ethanol, so no go for me.
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  #19  
Old 03-15-2015, 10:47 AM
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Re: What is everyone's MPG?

25.1mpg over our first 2k miles. Eco-D, 80% City/ 20% Hwy
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  #20  
Old 03-22-2015, 12:39 PM
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Re: What is everyone's MPG?

Yesterday, Albuquerque to Tucson (mostly mountain highways) with no wind the first couple hundred miles and a little head wind the last 150 miles or so: 31.1mpg.
4x4 diesel with rockrails, winch, gear.
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Old 03-22-2015, 10:43 PM
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Re: What is everyone's MPG?

2013 GC Trailhawk V8, 3 people, 2 dogs, Thule cargo box on top, Shell premium fuel. Averaged 18.5 mpg between Denver, CO and Phoenix, AZ running at speeds of 78 or so. I was hoping to get 21 - 23, but I'm pretty certain the cargo box killed that dream.
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  #22  
Old 03-22-2015, 10:48 PM
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Re: What is everyone's MPG?

Usually get +/- 20 mpg with regular gas in mixed driving. Highway miles are usually relatively short trips. 3.6L V6, 2014 GC.


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  #23  
Old 03-26-2015, 10:16 AM
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Re: What is everyone's MPG?

My wife is having fun trying to drive her Eco-D for mileage even though it's 80% in town driving with heavy traffic being the norm.

The computer is now showing a lifetime average (5.5K total miles) of 27.1 mpg!
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Old 03-27-2015, 05:51 AM
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Re: What is everyone's MPG?

I have a Pentastar V6 4x4 Laredo and I live in rural NSW Australia and keep extensive records of my fuel usage with an iPhone app.

I have done 24,500km in the Jeep since new and have averaged a combined 22mpg.

The best I've achieved on a highway run is 27mpg between where I live and Melbourne.

In Australia we have 91, 95 and 98 octane fuels as standard and always run 98. I have tested this in previous cars and the extra mileage outweighs the additional cost of the fuel.
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