MPG Figures for 2018 Wrangler Unlimited 4-Door (JLU) 3.6L V6 Pentastar revealed by EPA

[JAY]

3.6L V6 Pentastar with 8-Speed Automatic Transmission (JLU):
20 MPG combined
18 MPG city
23 MPG highway

3.6L V6 Pentastar with 6-Speed Manual Transmission (JLU):
19 MPG combined
17 MPG city
23 MPG highway

Compare this to the outgoing 2018 JKU model (both 6-speed manual and 5-speed automatic transmission):
18 MPG combined
16 MPG city
21 MPG highway (20 MPG for automatic)

Sponsored

 

[S207307]

Thanks for the info. Now I'm looking forward to the 4cyl mpg.
I'm confident it will be just a bit less than the Giulia and Stelvio:
https://www.fueleconomy.gov/feg/Find.do?action=sbs&id=39289
https://www.fueleconomy.gov/feg/Find.do?action=sbs&id=38724
However, with the 4cyl needing premium, the ~24 mpg expected will be a wash vs. 20 mpg (reg gas) with the pentastar.

 

[LouNYC]

Those numbers aren't surprising or impressive. Im waiting see the 4cyl. & diesel numbers.

 

[foo.c]

The numbers are imaginary anyway. I never got close to the sticker in my JKUR unless I had a tailwind.

 

[Phenomenon]

As someone getting a manual, this is actually good news. But bad news for those that expected improvement from the 8-speed..

 

[Khay]

It's 20,18,23 for the 8spd, not 17. I guess they updated it already?

 

[Armycop]

About what I thought. 10% improvement across the board. The Alfa Stelvio 2.0 turbo crossover gets 22 city and 28 hwy mpg. I'm guessing the Wrangler at 20/25 due to the extra weight and poor aerodynamics.

 

[DanW]

That's about what I expected. Looks like the ESS doesn't do squat for the manual. I'll be shutting that sucker off every time, and looking for AEV to do a new ProCal to shut it off permanently. I'll bet the 4 cylinder does 1mpg better across the board, making 24 on the highway, which isn't bad for a big brick.

 

[BillyHW]

Shouldn't there be different numbers for the Sport, Sahara and Rubi, or do the axle ratios not matter that much?

 

[Armycop]

Sport and Sahara should be the same, tire diameter is the same. Rubicon has bigger tires and 4.10 gears, probably will lose a mpg vs the other two.

 

[Spank]

I wonder how much of the change is the transmission and engine vs. the aerodynamics. I wasn't expecting game-changing improvement, but all of these tweaks only added 2mpg to highway driving?

Hopefully the diesel does better.

 

[jeppesen.io]

Not blown away, but happy with these numbers

I got a manual and it's nice to know highway mpg is the same as the eight speed.

I look forward to ESS saving in city traffic too.

 

[danzy55]

after all she's still a brick on wheels...sure the diesel should see some positive gains maybe 26-28mpg

 

[JaybearWL]

I’m not surprised but I’m still disappointed. I was hoping for at least 20 in the city. Perhaps if I drive like enough of a pansy....

Sponsored