Gladiator diesel real life MPG

[ilovebikes99]

While pulling that trailer.

You know what you're doing. Towing in manual mode, around 2000rpm. Good on you. Many just leave in auto and let the engine bog

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[steelponycowboy]

I've owned a Mojave for 11 months. Unfortunately I totaled it in an accident. I'm looking to purchase a new Gladiator and am considering the diesel option for fuel efficiency. I'm looking for REAL MPG numbers on the diesel from someone that owns one. My Mojave got 15-18mpg (City or freeway). Sticker states 17 city, 22 hwy. I could NEVER get it above 18 mpg. Since the Mojave doesn't have the diesel option, I'll have to go with the Rubicon.

Does anyone have the actual mpg for the Rubicon diesel option. (NOT what the sticker claims)
I'd like to know
- Daily all round driving MPG
- Freeway only driving MPG (NOT towing)
- Freeway driving pulling a travel trailer (Approx 5,000 lbs)
I live in Northern California, in the foothills at approx. 2,300' altitude.

Thank you

Ok, I have had mine since April 16, 2021. I have 26,342 miles on it as of tonight.

When it was stock and new I was getting 26-29 mpg average consistently. Now that I loaded it down with a RTT, topper, bed slide, fridge, gear, lift and bigger tires and rims, it's gone down, by 8 MPG or so.

If you want good MPG on the diesel, keep it bone stock.

 

[ArmyMP]

My trip to Dayton yesterday.

 

[Glad_he_ate]

Winter I get 22 summer I get 26 to 28

 

[Cheebs]

19-20 mpg combined with 37" tires and roof top tent.

 

[TheSolarWizard]

My trip to Dayton yesterday.

if your truck was actually getting 29 mpg the range at a 1/4 tank would be ~170 miles

 

[ArmyMP]

if your truck was actually getting 29 mpg the range at a 1/4 tank would be ~170 miles

It's all about how you drive. Put the fun Switch on 5, and let adaptive cruise control do its thing.

 

[ArmyMP]

Thsts actually about 4 gallons.
It's all about how you drive. Put the fun Switch on 5, and let adaptive cruise control do its thing.

 

[steelponycowboy]

It's all about how you drive. Put the fun Switch on 5, and let adaptive cruise control do its thing.

I agree. My best MPG was using the Adaptive Cruise Control and setting my speed at 65mph.

Last weekend we took an overland trip of just over 200 miles with average speeds of about 30mpg in dirt, gravel, soft sand, etc. Was getting nearly 19mpg off road in 2high. On the way home with the ACC and Cruise set at 75, I got 18mpg, In all fairness, never got the speedo calibrated for 35's and as an overland rig, I'm pushing 6400lbs GVW.

 

[ArmyMP]

Today's high mileage.

 

[Rusty PW]

Have 200 miles on the clock now. Started out 17.3 average when we picked it up. It's up to 21.1 average now.

 

[AXISJT]

I'm at a 30.8 average right now it drops down to 28 at the lowest and that's rare but hasn't dropped less the 30 for a bit.

 

[wv_gladiator]

21 to 23 combined on 35's corrected

 

[alpineovernappa]

Factory sport S no modifications got regular highs in the 30-31 range (55-60, sea level) and regular lows around 24 (75-85 mph, sea level). Most tanks got around 27mpg. This was over the first 14k miles

Added leveling puck and lost about 2mpg average on those number, assuming due to change in aerodynamics.

The type of diesel fuel you use (#1 vs #2), ambient temps, and sustained speed will make the biggest differences in stock form mpg.

 

[trailless]

With heavy beadlocks, a winch, 37s, and a 4.5" lift im getting 15.9mpg. Not bad considering I was getting 17.5-18mpg stock. In my defense, my shoes are very heavy.

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