MPG and range

[JP1]

Should add to this list:

Also wondering what having the Tonneau cover does to the mileage. It's gotta help a bit aerodynamically.
Naked (no doors or top), Semi-Naked(no top), or fully dressed (bummer)

Was actually stated (I want to say proven, but will get called out for that) by one of the larger groups, (MAY have been Motortrend) a long time ago that a tonneau not only would not help, could hurt mileage.
The thinking was that the tailgate created a high air pressure zone in the bed and air would flow over the whole bed better.

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[rvillano8188]

Was actually stated (I want to say proven, but will get called out for that) by one of the larger groups, (MAY have been Motortrend) a long time ago that a tonneau not only would not help, could hurt mileage.
The thinking was that the tailgate created a high air pressure zone in the bed and air would flow over the whole bed better.

I would assume a cover would reduce drag, and I was looking at quite a few articles that actually tested it out and showed improvement. I want to say Mythbusters did an episode on this. Then I read consumer reports and they said it reduced MPG in their testing.

Moral of the story, tests are stupid

 

[Daddy's Toy]

Wow, you guys are lucky. What is wrong with my Rubicon Launch. Stock drive-train and I'm averaging 11.4mpg. I'm running about 37psi cold, 39 warm. My friend is getting 16mpg with his. Does anybody else have this bad of mpg.

 

[JP1]

What is wrong with my Rubicon Launch. Stock drive-train and I'm averaging 11.4mpg. I'm running about 37psi cold, 39 warm.

ummm, you DO know that the skinny pedal on the right isn't just ON/OFF?

 

[Daddy's Toy]

ummm, you DO know that the skinny pedal on the right isn't just ON/OFF?

Funny, I put a tennis ball under the pedal to help control myself, but now I know it's under the wrong pedal

 

[Dwosgood]

Jeep year & trim: 2020 Sport S w/ Max Tow
Mileage: 680
Engine: 3.6
Fuel type: 87
Lift: stock
Tire size and model: factory Bridgestone 245/75R17
Diff gearing: 4.10
Tuned?: nope
Other: nope
Tire PSI: 34 cold
Speedometer recalibrated? No
EVIC or hand calculated?: EVIC
Local driving conditions: less than 60MPH highways, military base driving (Lejeune), Jacksonville, NC area
Average MPG: 18.2

My first tank of gas had an average of 14.6mpg, it’s been steadily increasing to average of 18.2. I’m honestly surprised and very pleased to have a Jeep get that kind of mileage...but I’m a CJ and TJ guy so I had the bar set real low for fuel efficiency. For reference, my wife drives a 2019 Honda Pilot and she’s averaging 18.6mpg with basically the same driving patterns as I have.

 

[biggdave92]

Should add to this list:

Also wondering what having the Tonneau cover does to the mileage. It's gotta help a bit aerodynamically.
Naked (no doors or top), Semi-Naked(no top), or fully dressed (bummer)

there's a gladiator wind tunnel video on youtube. FCA engineer said tonneau increased mpg by 3%.

 

[Malarkey21]

Jeep year & trim: 2020 Rubicon
Mileage: 6800
Engine: 3.6 pentastar
Fuel type: 87 octane (shell or kroger since they are close)
Lift: stock
Tire size and model: Stock Falken wildpeak A/T
Diff gearing: 4.10
Tuned?: No
Other add-ons: None
Tire PSI: 37 cold per door sticker
Speedometer recalibrated? No
EVIC or hand calculated?: EVIC
Local driving conditions: Country roads, semi twisty and small rolling hills. Posted speeds 35-55 mostly 55 (+5 for actual speed)
Average MPG: 19.5-20 pretty consistently, sometimes 21.

Extra Info: I never turn off the ESS and I always have the climate control on auto. Getting about 380 miles on a tank

 

[smlobx]

there's a gladiator wind tunnel video on youtube. FCA engineer said tonneau increased mpg by 3%.

Thanks!
I looked it up and it was very interesting....if you want to hear about the tonneau just watch the last fifteen seconds..

 

[steffen707]

i haven't kept great track of my mileage so I won't fill out the form just yet, but what I found very interesting is that I picked up my dad's EMPTY 6x10 trailer and hauled it 5 miles to my house going about 75mph I got 12.3mpg. I then drove it about 20 miles to pick up a load of wood and was still at like 12.7mpg.

After driving back home 20 miles with it fully loaded 6'x10'x22" with wood, i had 14.5mpg. When it was loaded up i only drove 65-70.

So apparently wind/grade and speed has a tremendous impact on the mpg while towing with the truck.

 

[TYJ]

Jeep year & trim: 2020 Gladiator Overland
Mileage: 5515
Engine: 3.6 pentastar
Fuel type: 87 octane
Lift: stock
Tire size and model: 275/65/18 Falken Wildpeak A/T
Diff gearing: 3.73
Tuned: No
Other add-ons: None
Tire PSI: 36 cold
Speedometer recalibrated: No
EVIC or hand calculated?: EVIC
Local driving conditions: hilly mountains, sea level, altitude, minimal highway, more city
Average MPG: 16.5 around town.
Average MPG: 20.5 hilly highways @ 75 mph.

 

[Whiplash2130]

How the HELL are you guys getting such great mileage ?
I have an LE with 35s and THE ABSOLUTE BEST I have gotten so far in mostly city driving is 13.6!!
What the hell is wrong with my truck? I am feathering the throttle and have almost never gone WOT.

13.6 is pathetic. Supposedly the dealer did a "Mopar Calibration" when they installed the new wheels and tires but man, I'm getting murdered over here.

I do almost all City driving with about 10 miles of highway driving in between. And it's mostly in traffic. But I would expect 15-17 for that. Not 13.5.

Is it possible the calibration is not done correctly? How can I make sure?

I’d try an Edge Products Pulsar tuner. Around $600.

 

[Shathawk]

Jeep year & trim: Rubicon LE
Mileage: 2400
Engine: 3.6 pentastar
Fuel type: 87 octane
Lift: stock
Tire size and model: 315/70R17 BFG KO2 (35" load range "C")
Diff gearing: 4.10
Tuned?: no
Other add-ons: Tazer mini
Tire PSI: (36

)
Speedometer recalibrated? yes
EVIC or hand calculated?: EVIC
Trip conditions: Flat, hilly mountains, 300ft to 3800ft speed 55-70 mph
Average MPG: 22
Anything else of interest. Tonneau cover closed

 

[Spyder]

Jeep year & trim: 2020 Gladiator Launch Edition Rubicon
Mileage: (681)
Engine: 3.6 pentastar
Fuel type: 87 octane
Lift: 2" Mopar
Tire size and model: (33")
Diff gearing: (4.10)
Tuned?: (no)
Other add-ons: Winch
Tire PSI: (35) cold
Speedometer recalibrated? (na)
EVIC or hand calculated?:
Local driving conditions: (city)
Average MPG: (13.2)
Anything else of interest. na

Here are my stats. I do see alot of complaints about low MPG for some and there is a huge factor that I have not seen anyone say yet. if you run your AC all the time your MPG will also drop dramatically. I have been driving new cars for years and it is very true that after a couple thousand miles your MPG will level out to what the norm should be. I will be able to give a better read on that in another 1400 miles or so. I have not had time to do alot of driving yet with it as my kids are playing alot of sports and just going back and forth to that mostly since I picked it up.

 

[Pat2Alaska]

Update on mine:
Jeep year & trim: 2020 Gladiator Launch Edition Rubicon
Mileage: (7,250)
Engine: 3.6 pentastar
Fuel type: 85-87 octane mostly 10% Ethanol
Lift: 2" Mopar
Tire size and model: 315 70R 17 BFG K02
Diff gearing: (4.10)
Tuned?: (no)
Other add-ons: Winch, Rockslide Engineering Step Sliders, Decked System, Ace Engineering Upper Decker, misc others
Tire PSI: (28.5) cold
Speedometer recalibrated? (Yes, with Tazer Mini)
EVIC or hand calculated?: Hand Calculated
Local driving conditions: (All)
Average MPG: (16.2 overall avg, upto 20 flat no wind or tail wind, 14.5 on Interstate at 80mph, 15 town driving, on a 2600 mile trip to Colorado and wheeling for 5 days, averaged 17.7mpg)
Anything else of interest. na

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