Real world MPG, what are you getting in your Diesel?

[CreepyJeepy]

Living in Colorado, around here with the hills, etc.

Mopar 2" lift, Ski Racks over the bed, 35" 12.5 Nitto ridge grapplers , Rubicon.

I get 22.5 -- 75% highway 25% city
I get 19.8 -- 90% city 10% highway

These numbers have been pretty consistent. I don't speed, and I am not lead footed. It's the hills that pull this down. If it were flat around here (what fun would that be...) i bet it would be more like 24 and 21.

Sponsored

 

[Kooch34]

Stock Rubicon

 

[Wat Dog]

I was getting 25 mpg consistently then I got 35s and a Mopar lift suddenly down to 20 mpgs….

 

[LOGS]

I don't know how you guys are getting 25mpg+. I average right around 18-19mpg. Mix city and highway(75-80mph).

late 21 build JTRD on 38s

 

[kooltoys]

I don't know how you guys are getting 25mpg+. I average right around 18-19mpg. Mix city and highway(75-80mph).

late 21 build JTRD on 38s

Im on 35's, yesterday I filled up right next to the interstate.. got 24mpg on a 100 mile trip to the trail. cruside control is the best way to get mpg up. my normal is 18-22 mostly city.. cutting thru the neighborhood next to me kills my mileage, 5 stop signs.. Also I try to get up to speed limit and then get out of the throttle seems to help.

 

[wveddy]

Have about 8k on my rubi, stock 33 falken AT tires. Getting 22-24 around town and 26-28 on interstate if i drive reasonable. Doing 80 the mileage takes a big hit. Best i have on interstate is 29.4 on a 200+ mile trip- pretty flat roads in NC/SC.

 

[Pescatoral Pursuit]

I don't know how you guys are getting 25mpg+. I average right around 18-19mpg. Mix city and highway(75-80mph).

late 21 build JTRD on 38s

My stats exactly on 37s. I'm dubious of some of these claims.

 

[ZoneArc]

40" tires on 4.88s.
14.7mpg.

 

[22EcoDs]

Bone stock sport S 988 miles, 24.8 . I expect it to go up once it breaks in and summer fuel comes out.

 

[Courtsm3]

34” Nitto Terra G with 2.5” up front .75” rear. Rubicon front bumper and Warn 10s winch. Nothing else added. 22.5mpg average on winter diesel and cold warm ups. Not bad. My gas 3.6 was right 18.5 on stock 33” last winter with no winch or bumper.

 

[Pilot425]

2021 Ecodiesel Gladiator running 37/12.5/17 35psi with 2” mopar lift stock gearing. 8,000k miles averaging 18mpg mostly city average trips under 15 miles. Toll road running 75 mph 18.5 mpg. Using hotshots daily additive with each fill up.

 

[TheSolarWizard]

I don't know how you guys are getting 25mpg+. I average right around 18-19mpg. Mix city and highway(75-80mph).

late 21 build JTRD on 38s

1) 38s and unknown wheel weight
2) consider 70 to be your max cruising speed

On 85lb 39s with 27lb 17x8.5s my truck gets 26.5 mpg at 55, 25 @ 60, 23.5 @ 65, 22.5 @ 70, 20 @ 75 and about 17.5 on 80 though I’ve never cruised long enough to hand calculate that.

other things that likely have impact for some people. Lower gearing, Chopped or aftermarket fenders, lots of extra weight, bed racks and lighting on the windshield hinge or worse above the windshield frame.

I have a tri fold tonneau on my which definitely seems to add about .5 or maybe more mpg in my experience and ive tried it both ways out of sheer dumb curiosity

 

[trailless]

I'm averaging about 17mpg on my stock Rubicon with the Mopar steel bumper. Nothing wrong with the truck, just the way I drive I guess.

 

[DAMEDIESEL]

Got 1500 miles on mine and average 22.6 with mixed use, no off road and bone stock.....
That changes soon!

I'm all highway just hit 3,800 miles on it average 24so far on stock anyone have bed cover?

 

[IPRoutes]

Stock Rubicon 3.0L - Mixed street/hwy - 22.7-23.0 nearing 1000 miles on the odo.

Have a soft top but steel bumper - end-caps removed.

Sponsored