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Grand Cherokee 4xe Highway mpg please?

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31K views 34 replies 16 participants last post by  Billi  
#1 ·
All,
I have a 2023 Wrangler Sahara 4xe since September and my wife and I really like the car. We use it mostly for short trips so mostly electric. It took some time to educate myself about how this car works and how to get the most out of it and avoiding FORM. After that process, have really grown to like the 4xe a lot. So far, no issues. The only thing I would change is a little bigger battery- 20 miles is a little short.
I am thinking of getting a Grand Cherokee maybe in the fall. Another 4xe. I have had 3 grand Cherokees over the years so this would be an easy step for me.

Question; on the Highway, running ICE all the time (hybrid mode with battery <1%) what real life mpg can be expected at normal highway speeds, 60-65? I am curious as this would be a road trip car and the pure electric feature I use all the time on the wrangler would not be as big a factor.

cheers,
john
 
#4 ·
After picking up ours and driving 1200 miles home, we were seeing anywhere from 23 to 25 while driving in Esave maintain on highway and electric in slower traffic. We have not done any other Long range trips and paid attention to the mileage. We have a 150 mile trip later this week I can try and pay closer attention to it.

We usually cruise at 60 to 70 mph depending on traffic conditions.
 
#10 ·
On my most recent tank of gas I hand calculated a gas engine mileage of 20 mpg, total with electric was close to 30 mpg. I commute 75 miles one way, then 3x30 mile round trips, then 75 miles back home during my work week. I charge as often as I can, usually overnight. On a 1600 round trip road trip from Northern CA to Northern WA I got between 22 and 24 mpg, which would be the use case you're asking about here.
 
#11 ·
I traded in a v6 Grand Cherokee 2wd from 2017 in for my 4xe. I was getting about the same milage on the highway in that as I am using the hybrid in esave mode. Smaller gas tank is a bummer in the 4xe. I wonder what the economy and performance would be if they made the vehicle with a hybrid adapted v6.

Paul
 
#12 ·
I traded in a v6 Grand Cherokee 2wd from 2017 in for my 4xe. I was getting about the same milage on the highway in that as I am using the hybrid in esave mode. Smaller gas tank is a bummer in the 4xe. I wonder what the economy and performance would be if they made the vehicle with a hybrid adapted v6.

Paul
IF you are travling to a destination you can charge or you are travling with no intention of using EV range right away or at all, just travel in Hybrid without switching to Esave. I'm still doing some trips testing range but rolling with just hybrid yields a 450+ mile range travling between 60 and 70mph with mixed elevation change.
 
#15 ·
That was my exact thought, and I have found that the fuel economy is not particularly better than my V6 4 x 2. On the other hand, this is using the mpg read out from the jeep and not calculating actual miles per gallon. Comparing this to a 4 x 2, and having some faith in the read out on the vehicle does not make it a particularly fair comparison.
 
#17 ·
All,
I have a 2023 Wrangler Sahara 4xe since September and my wife and I really like the car. We use it mostly for short trips so mostly electric. It took some time to educate myself about how this car works and how to get the most out of it and avoiding FORM. After that process, have really grown to like the 4xe a lot. So far, no issues. The only thing I would change is a little bigger battery- 20 miles is a little short.
I am thinking of getting a Grand Cherokee maybe in the fall. Another 4xe. I have had 3 grand Cherokees over the years so this would be an easy step for me.

Question; on the Highway, running ICE all the time (hybrid mode with battery <1%) what real life mpg can be expected at normal highway speeds, 60-65? I am curious as this would be a road trip car and the pure electric feature I use all the time on the wrangler would not be as big a factor.

cheers,
john
Hwy 24MPG in hybrid mode. 45mpg around town. Right now I’m at 756 miles and still at a 1/4 tank.
 
#23 ·
Page 9 in the RTFM - 2.0L ENGINE
This engine is designed to meet all emissions requirements, and provide satisfactory fuel economy and performance, when using high-quality unleaded regular gasoline having an octane rating of 87, as specified by the (R+M)/ 2 method. The use of 91 or higher octane premium gasoline will allow these engines to operate to optimal performance. This increase in performance is most noticeable in hot weather or under heavy load conditions, such as while towing.
 
#24 ·
Page 9 in the RTFM - 2.0L ENGINE
This engine is designed to meet all emissions requirements, and provide satisfactory fuel economy and performance, when using high-quality unleaded regular gasoline having an octane rating of 87, as specified by the (R+M)/ 2 method. The use of 91 or higher octane premium gasoline will allow these engines to operate to optimal performance. This increase in performance is most noticeable in hot weather or under heavy load conditions, such as while towing.
Might as well bold most of it.

Use whatever you want to spend.
 
#27 ·
2022 Trailhawk 4Xe.....Starting out with a full charge on electric then Hybrid mode I'm getting 27-28MPG (hand calculated 87 Octane) on the highway doing 5mph over the speed limit but NEVER going over 70mph. If you want good fuel economy.....slow down.....at 80mph your not going to get it.....also easy on the skinny pedal when starting out....you have to keep your foot out of the floor board when taking off.
 
#29 ·
I do not have hand calculated numbers for a highway run on either a 4xe or other GC (I do not trust the computer's calculations).

Given that from EPA numbers for the 2022 GC (4xe city and high post battery sourced from Car and Driver):


CombinedCityHighway
4xe (without battery charged)232423
3.6221926
5.7171422

If road tripping or other long distance is the primary use case, then the 3.6 beats the 4xe by about 13%, heck it only beats the 5.7 by about 5%. Thought the 4xe can run regular and the 5.7 should be midgrade, so the fuel costs would be more. But you can buy a lot of gas with the price difference of the 4xe.

Cliff notes version: My opinion is the 4xe only makes sense when you can get a lot of use out of the plugin aspect.
 
#31 ·
I do not have hand calculated numbers for a highway run on either a 4xe or other GC (I do not trust the computer's calculations).

Given that from EPA numbers for the 2022 GC (4xe city and high post battery sourced from Car and Driver):


CombinedCityHighway
4xe (without battery charged)232423
3.6221926
5.7171422

If road tripping or other long distance is the primary use case, then the 3.6 beats the 4xe by about 13%, heck it only beats the 5.7 by about 5%. Thought the 4xe can run regular and the 5.7 should be midgrade, so the fuel costs would be more. But you can buy a lot of gas with the price difference of the 4xe.

Cliff notes version: My opinion is the 4xe only makes sense when you can get a lot of use out of the plugin aspect.
When its all said and done I paid 3K more for my 2022 JGC Trailhawk 4Xe over my 2020 JGC Trailhawk V6. The first 6200 miles I put 191 gallons of fuel in the 4Xe and 313 gallons in the V6. The V6 MPG hand calculated was 19.88 MPG and the 4Xe was 27.26 MPG. My electric is free so I really don’t count the electric. If it wasn’t for a few recent long trips I would be full electric in my PHEV because everything for me is close enough I don’t use the ICE. I keep my fuel tank at 1/4 tank and I buy 5.5 gallons of gas every 6-8weeks to get out of FORM. For my situation it really works well for me. I love the power when I hit the skinny pedal!!!
 
#35 ·
While towing, mpg is reduced by half, which is similar to other vehicles. I get about 12 mpg or I estimate roughly 250miles/tank. We upgraded from a Kia Sorento to Grand Cherokee. We used to need to watch carefully for ATF temp, but Jeep’s ATF has been cool the whole time. Hope to test it out in a long mountain pass this camping season… So far so good!

One thing I love about 4xe as a tow vehicle was that while setting up the hitch, I can stay in EV mode so the Jeep could still have all the functionality including A/C and I could also work at the rear part of the car and not worry about hot exhaust!