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  #1  
Old 10-15-2016, 09:31 PM
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2017 Trailhawk Hemi fuel consupmtion

Hi,
New here...have a question about the 2017 trailhawk hemi.
I have read somewhere that the city consumption is not that bad as advertised at 14...but more like 16ish.
does anyone have any experience with that?
my 2014 laredo is around 18.
thanks,
P

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  #2  
Old 10-16-2016, 08:13 AM
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Re: 2017 Trailhawk Hemi fuel consupmtion

During the summer months with general rural driving, I average about 16 with my MY12 Hemi; less if it's a bunch of really short trips which would be normal for most vehicles. And I have a very "light" foot. So what you would get with the MY17 Hemi (doesn't matter if it's a Trailhawk or not) will be determined by what your "city" driving actually is. The 8 speed tranny helps a little over my older JGC, but again, there are many variables.
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  #3  
Old 10-16-2016, 08:53 AM
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Mileage can be all over the map depending on the driver and conditions, with the hemi 8spd i have got as low as 14 in city and 24 on a highway cruise, my mixed is usually 17-18. If you are getting 18 now mixed on the v6 figure roughly you will get about 16 on the hemi for the same conditions. Also hemi is fine on regular 87 for running around the suburbs, if you tow, live in ultra hot climates or constantly push the engind to limits then use mid grade 89. Again 1000 different people = 1000 different driving styles and conditions so it will be a different answer from everyone on this
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Old 10-23-2016, 04:12 PM
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Re: 2017 Trailhawk Hemi fuel consupmtion

Only had my wife's Trailhawk for a few days but with 168 miles the computer is showing 16.9 mpg

This is with trying to vary the RPMs for break-in. I'm very happy so far.
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Old 10-24-2016, 08:01 AM
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Re: 2017 Trailhawk Hemi fuel consupmtion

Coming from a v6 4x4 with the lrr tires, I'm anywhere from 1-5mpg worse. The biggest difference seems to be on the highway above 70mph. The hemi struggles to hit 21, while the v6 could do 25 or so. I'm only at 1400 miles though, so things could change.


On a positive note, my drive to work (which has a lot of 40-50mph zones) is within a half mpg of the v6, 18 vs 18.5 give or take a few each way.
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Old 10-24-2016, 08:31 AM
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Re: 2017 Trailhawk Hemi fuel consupmtion

Went from southern Indiana to Destin Florida yesterday with my 14 Summit with 23,000 miles on it and with the v6.Cruised 75-80 most of the way ran into some traffic issues and the computer says I averaged 24.I was satisfied with that.
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Old 10-24-2016, 08:39 AM
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Re: 2017 Trailhawk Hemi fuel consupmtion

Over the 6,700 mile period of owning my 2014 Summit V8, it averaged 16.4mpg. This was logged using the fuely app so that's a actual figure not dash board. My driving consists of far suburban commuting. No harsh stop and go traffic, but also no full out highway.
For what it's worth, I am now in a 2015 V6 and that same fuely app is showing my current average at 20.1mpg, and ironically I'm at the exact same 6,700ish mile point.
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Old 10-24-2016, 08:45 AM
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Re: 2017 Trailhawk Hemi fuel consupmtion

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Originally Posted by AkXb70 View Post
The biggest difference seems to be on the highway above 70mph. The hemi struggles to hit 21, .
The highway "sweet spot" for the Hemi is 65-70. When you go faster than that, you are correct that things (your fuel level) goes down a lot quicker. 65-70 gives you the "optimal" engine RPM for the overdrive and lets MDS work efficiently. Above that speed range, you're more likely banging on all eight most of the time and clearly reving higher than that ~1750 RPM "spot".
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Old 10-24-2016, 01:35 PM
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Re: 2017 Trailhawk Hemi fuel consupmtion

Quote:
Originally Posted by hammick View Post
Only had my wife's Trailhawk for a few days but with 168 miles the computer is showing 16.9 mpg

This is with trying to vary the RPMs for break-in. I'm very happy so far.
I've been pleasantly surprised at how LITTLE the driver's right foot affects average mileage--except for short term variations in "wheeeeeee" mode.
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Old 10-24-2016, 03:01 PM
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Re: 2017 Trailhawk Hemi fuel consupmtion

It's so driver dependent.
My 14 Overland Hemi is my wifes daily driver. She typically gets mid 16's... although I've seen her get low 18's (I know because I am the gas man). When I drive it, I typically get mid 19's... although I can make it get 14 with ease.
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Old 10-24-2016, 03:18 PM
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Re: 2017 Trailhawk Hemi fuel consupmtion

Quote:
Originally Posted by Mike H. View Post
It's so driver dependent.
My 14 Overland Hemi is my wifes daily driver. She typically gets mid 16's... although I've seen her get low 18's (I know because I am the gas man). When I drive it, I typically get mid 19's... although I can make it get 14 with ease.
Same in our house, too, Mike. My spouse (and now daughter) do not get the same higher fuel economy I do, regardless of which vehicle because they are heavier on the foot, both for acceleration and braking. More gas and shorter brake life ensue....had I not just had that caliper issue I posted a thread about, (I would likely have gone to about 100K on my brakes. They were still at half-way when the vehicle was inspected in July at 72K miles)
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Old 10-25-2016, 03:29 PM
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Re: 2017 Trailhawk Hemi fuel consupmtion

Quote:
Originally Posted by 88bradb View Post
Went from southern Indiana to Destin Florida yesterday with my 14 Summit with 23,000 miles on it and with the v6.Cruised 75-80 most of the way ran into some traffic issues and the computer says I averaged 24.I was satisfied with that.
I tend to drive a slower than you, around 65mph and when I do, I typically get 26 mpg on my V6 Summit (on the computer). I'd probably get similar mpg as you at those speeds. I'm still breaking it in with only 1500 miles on it.
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