Gas mileage/range report - JeepForum.com
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post #1 of 14 Old 03-28-2021, 04:40 AM Thread Starter
Matt_H
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Gas mileage/range report

Haven't really put a lot of miles of the GC during the pandemic - mostly small trips to stores locally (which means maybe 5 miles away at best). However, drove from DC to Florida yesterday. Happy to report that I could get 600 miles to a tank of gas (if I were willing to run it down on fuel - refueled before running completely out,lol). Was also happy to see that the computer average MPG was fairly accurate to within a tenth or so of MPG. Kids were less thrilled about the range than me since I don't like stopping unnecessarily, lol. About 25 MPG driving between 70 and 75 MPH. After refueling, hit some traffic that stopped the highway and WAZE even had me jump off it to get around stuff, but then hit Georgia and was running between 80 and 85 MPH. With that and At those speeds dropped to 23 MPG. I'm happy with that.

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post #2 of 14 Old 03-28-2021, 05:55 AM
Jd41wk2
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Quote:
Originally Posted by Matt_H View Post
Haven't really put a lot of miles of the GC during the pandemic - mostly small trips to stores locally (which means maybe 5 miles away at best). However, drove from DC to Florida yesterday. Happy to report that I could get 600 miles to a tank of gas (if I were willing to run it down on fuel - refueled before running completely out,lol). Was also happy to see that the computer average MPG was fairly accurate to within a tenth or so of MPG. Kids were less thrilled about the range than me since I don't like stopping unnecessarily, lol. About 25 MPG driving between 70 and 75 MPH. After refueling, hit some traffic that stopped the highway and WAZE even had me jump off it to get around stuff, but then hit Georgia and was running between 80 and 85 MPH. With that and At those speeds dropped to 23 MPG. I'm happy with that.

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Wow! That's quite an improvement over my 2014 v6. If I stay between 65 and 70 I'll see 23 if I do 75-80? No more than 20. Going from NY to PA I merged into a pack of 6 cars in the left lane on I80 and they were doing a 3 digit speed (I mean 5 mph under the speed limit) and I was getting 16

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post #3 of 14 Old 03-28-2021, 04:38 PM
Bilko
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600 miles is good, I remember when I bought my WK2 and was thinking it was great on gas because I didn't need to refill for at least a month.....then realized it has quite a large gas tank for a car of its size, I think it's close to 25 US gallons. That said I can do the round trip to Tahoe and back without refuelling and that's about 500 miles and over some 8,000ft mountain passes with a roof box. The WK2 is a heavy vehicle so it's the stopping and starting that hits the economy, its also about as aerodynamic as a brick which means you take an MPG hit as soon as you get much over 65-70 mph. Mines the older v6 with the 5-speed auto, on my pre-Covid commute I would average ~20mpg and on road trips usually 25+mpg. There is also a big driver factor, my Son can never gets more than 20mpg when he drives the car:-)

Oversized wheels and tires can also make quite a difference to your mpg.

For range the European WK2 diesel, without the US emission controls is hard to beat, these will usually average over 700 miles between fill-ups, In Europe gas or diesel is equivalent to more than $8 a gallon, and that why virtually all the European WK2s are the 3.0 diesel versions.
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post #4 of 14 Old 03-29-2021, 12:50 PM
KeeptheJeep
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That's great to hear. I'm about to take a 1200 mile road trip and it would be nice to see 25mpg. I don't mind taking my time and cruising at 70-75.
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post #5 of 14 Old 03-29-2021, 06:49 PM
diverscale
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Originally Posted by KeeptheJeep View Post
That's great to hear. I'm about to take a 1200 mile road trip and it would be nice to see 25mpg. I don't mind taking my time and cruising at 70-75.
You can definitely hit that if you keep it at 70. Went from canada to florida before the pandemic, and was hitting 23 mpg doing 75++
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post #6 of 14 Old 04-01-2021, 11:48 AM
SEMIJim
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I've been logging my mileage info ever since I acquired my 2015 JGC WK2 in late fall of 2017. My JGC has the 5.7L Hemi. The PO upgraded the CAI to the MOPAR high-performance CAI, swapped-out the original tires for tires that claim to yield higher mileage, and, it turns out, had had the resonators chopped out.

I've averaged 15.8 MPG over the 4-1/2 years. High was 20 MPG (long road trip) and low was 12.9. Most of my driving is short trips on suburban/semi-rural two-lane roads with a moderate amount of traffic signals.

These are real numbers, based on miles driven vs. gallons pumped. The DID's mileage indication averages 0.6 MPG high.
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post #7 of 14 Old 04-01-2021, 12:30 PM
WK2Overland4X4
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Originally Posted by SEMIJim View Post
I've been logging my mileage info ever since I acquired my 2015 JGC WK2 in late fall of 2017. My JGC has the 5.7L Hemi. The PO upgraded the CAI to the MOPAR high-performance CAI, swapped-out the original tires for tires that claim to yield higher mileage, and, it turns out, had had the resonators chopped out.

I've averaged 15.8 MPG over the 4-1/2 years. High was 20 MPG (long road trip) and low was 12.9. Most of my driving is short trips on suburban/semi-rural two-lane roads with a moderate amount of traffic signals.

These are real numbers, based on miles driven vs. gallons pumped. The DID's mileage indication averages 0.6 MPG high.
When driving home 200 ish miles after buying mine with 99K miles, I got peak of 21MPG. And running errands up and down hills, it will drop to 12. Typically if moving for most of the tank it is about 14. It is a pig, but I fully understand why, and it gets about what I expected after having a loaded 2002 Town and Country for size and weight comparison, and a 2006 and 2015 Charger R/T both with 5.7 HEMI for powertrain comparison.
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post #8 of 14 Old 04-01-2021, 08:17 PM Thread Starter
Matt_H
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Gas mileage/range report

All in all I've noticed that CHANGING speeds really seems to affect MPG on this vehicle, more severely than most. Even regularly changing between 65 and 75 MPH for example. But if you can maintain speed it does well. At least mine.


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post #9 of 14 Old 04-16-2021, 05:34 PM
KeeptheJeep
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I drove from MI to TN and averaged 26mpg. 2018 with the 3.6. I used the cruise a lot and kept it between 70-75MPH.
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post #10 of 14 Old 04-18-2021, 07:10 AM
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Lots of city driving in Chicago
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post #11 of 14 Old 04-18-2021, 01:31 PM
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Originally Posted by Nydamon View Post
Lots of city driving in Chicago
So on June 8, how nervous were you?

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post #12 of 14 Old 04-18-2021, 06:21 PM
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2021 Trailhawk with the Hemi: Best mileage on the highway has been right at 20 mpg, in Eco mode on flat roads, 70 - 75 mph (speed limits in west Texas). Average is about 14, mostly city driving with some highway, Eco mode off. 11k miles on the Jeep.

Cheers

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post #13 of 14 Old 04-19-2021, 06:19 AM
indymtb
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Three fill ups with my 2021 GC Trailhawk: 30 miles to 1612 miles. 17.9 mpg
3.6 L
Mostly city.
Looks like it averages around 22-23 on the highway.
AT Tires are probably giving me a -1.5 or -2 mpg hit.
But we love the Jeep.

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post #14 of 14 Old 04-19-2021, 09:34 AM
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So on June 8, how nervous were you?
I was born and raised in NYC. I'm not easily fazed.
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