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Gasser real world fuel economy

NightFog

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2020 Rubicon is 15-15.5 mpg
My 2017 Grand Cherokee withe the same motor gets around 15.5.
No mods on either one.
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Tom Fry

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Stock Willys, 3,200 miles, Average 17...mostly city with some highway. I'm not known for being light on the pedal, especially from a start.
 

Courtsm3

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Yesterday 11.3L/100km or 21.8mpg

today after a 4 hour trip with 4 35’s in the bed, wife and child 11.7L/100km or 21.1 mpg.

Stock 285 Falkens at3w. 1.5” front lift .75” rear lift , stubby mopar rubi bumper, AEV snorkel with AFE dryflow and Magnaflow crawler 2.5” on 87oct no tune.
I live at 2400ft so I often drive to near sea level and back home. Im pressed but I also drive easily 80% around 80-90km/h or 50ish mp/h.
 

DailyMoparGuy

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I’m driving my all stock ‘21 Sport S w/Max Tow 90% hwy and 10% city with a 20.1 mpg average.

I cruise between 65-70 in the morning commutes. Stop and go traffic for my afternoon commute here in Houston. Weekends I kinda zip around town. Cruising at 70 mph on flat ground tends to get me about 25 mpg.
Just to add to my earlier post. Some days the Glady decides to do this.....(29 mpg, flat ground)

CFDCE910-AB8D-4BBF-8360-9FBB2FEF820B.jpeg
 

Blade1668

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Just to add to my earlier post. Some days the Glady decides to do this.....(29 mpg, flat ground)

Jeep Gladiator Gasser real world fuel economy CFDCE910-AB8D-4BBF-8360-9FBB2FEF820B
Mine has had some strange days doing things like that but it wasn't just flat terrain even. 🤔 I was totally surprised with some of the instant mpg readings.
The photo below was on a road trip to Texas, I've had some even better last summer.

IMG_20210307_164941.jpg
 

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cecaa850

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Mine has had some strange days doing things like that but it wasn't just flat terrain even. 🤔 I was totally surprised with some of the instant mpg readings.
The photo below was on a road trip to Texas, I've had some even better last summer.

Jeep Gladiator Gasser real world fuel economy IMG_20210307_164941
Cruise set on 52? I'm surprised you didn't get run over.
 

Toyfrog

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Going in the morning to the dealership to have them reprogram for the 315/70/17. Was “getting” about 18.5 with the stock 285’s that came in the Mojave. Only have 2600 miles on it, so I’m hoping it’s not fully broken in yet. 🤣
 

Shaqeroni

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I expect to be ordering a Gladiator in the next month or two (selling my current truck while the market is hot), and trying to decide between gas and diesel. There's a thread in the diesel forum re: real world mpg, but not here in the gasser section. So, post up what you're getting along with any mods that might affect it, driving mix, driving style, or whatever else seems pertinent. Thanks!
Bone stock Willy’s under 2k miles and currently sitting on the odometer at 21.1 mpg. Fuel mileage is way better on the backroads than the highway. When I am on the highway I set cruise at about 67mph and I get between 17 & 18 mpg. I baby this thing and was hoping for better highway mileage. Maybe after the 1st oil change it will improve a couple mpg.
 

Firestarter

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Bone stock Willy’s under 2k miles and currently sitting on the odometer at 21.1 mpg. Fuel mileage is way better on the backroads than the highway. When I am on the highway I set cruise at about 67mph and I get between 17 & 18 mpg. I baby this thing and was hoping for better highway mileage. Maybe after the 1st oil change it will improve a couple mpg.
When I first brought mine home it had an average of 13 even. Got back from a trip where it shot up to 17.3... Only been driving on the streets since then and it's bounced from 16.8 to 17.1 (current). I'm stock with 900 miles. My 2nd to last car, 2013 Subaru WRX averaged 19mpg and took premium, so this is around the same cost. I know from the trip that 70mph and cruise is right above 20mpg based off the miles I drove and gas it took to fill.
 

Blade1668

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Cruise set on 52? I'm surprised you didn't get run over.
Well some places that's even speeding... It's not a good idea to have to tell your "Chief" you got pulled over for speeding too. Especially a few weeks before your evaluation is due.😉.
 

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Gundler

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Ouch...

I have a 2021 Mojave with ~2000 miles on stock MTs:
Normal everyday driving is a whopping 13.8ish...
Highway centric driving with an average of 75 mph, I see 15.7ish...

Coming from a 2011 Toyota Tundra 5.7L Limited...which consistently was getting 14.7ish normal driving and 17+ish for highway. Needless to say, I am disappointed with the efficiency of my new Jeep! LOL (I still absolutely love this truck)
 

Toyfrog

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Ouch...

I have a 2021 Mojave with ~2000 miles on stock MTs:
Normal everyday driving is a whopping 13.8ish...
Highway centric driving with an average of 75 mph, I see 15.7ish...

Coming from a 2011 Toyota Tundra 5.7L Limited...which consistently was getting 14.7ish normal driving and 17+ish for highway. Needless to say, I am disappointed with the efficiency of my new Jeep! LOL (I still absolutely love this truck)
My Mojave started picking up after 2000 miles. Got about 17-18 average. Just put bigger tires on it and just had the dealership reprogram the computer about 20 minutes ago. Anxious to see what it shows now. Was showing 16 before program. Only have 2600 miles on the truck so far. Wonder if it get better with more miles? Some are saying they are averaging 20+?
 

Jeeperjamie

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Max Tow on 37's with stock 4.10 gears. I get between 17.2 to 17.9 mpgs. Average 17.2 mpgs over the last 2-1/2 months since k put the 37's on. Was getting 18.7 on 35's. 50/50 driving city hwy, speedo reset using Jscan is dead on at 70mph.

Jeep Gladiator Gasser real world fuel economy PXL_20210425_020132630


It looks like this if your curious about the weight added

Jeep Gladiator Gasser real world fuel economy PXL_20210328_233737820.PORTRAIT~2


7000 miles in on the 37 12.5 17 Goodyear Kevlar MTRs.
 

Orange01z28

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35s and 3.73s

Jeep Gladiator Gasser real world fuel economy IMG_5656.JPG
 

ttn333

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Some of you guys are mileage monsters. Driving like a granny, I can get up to 14.5mpg max on 37x12.5x17 toyo rt. Otherwise it's 13 to 13.5. Thats mixer highway and city.. She's about 2 months old and have about 2500 miles on her.
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