Your 3.0L Diesel's MPG's, share with the class.

Ruby Mike

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Michael
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Don't you guys hand calculate? I'm seeing lots of pictures of what the Jeep says it gets. Mine is occasionally on, but it can be 2 mpg high or low as well.
I regularly check the fuel mileage both by the indicator and by miles driven. Normally the result is within a mile or so. Overall I am very happy with the diesel.





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Motoristx

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2020 Jeep Wrangler Unlimited Rubicon 3.0 Diesel, 1993 Jeep Wrangler Sahara
stock gearing?
yes, on the 3.73s with 38’s.


Don't you guys hand calculate? I'm seeing lots of pictures of what the Jeep says it gets. Mine is occasionally on, but it can be 2 mpg high or low as well.
always, I’m usually 1 mpg lower than the dash. Every once in a while I get a surprise and I’m 2 mpg low!
 

JamesWyatt

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First road trip of about 130 miles round trip: 29 mpg (stock Rubicon/stock BFG ATs). Change in elevation of about 3,000' (low 5K' to the mid 8K'). Some 70mph, but mostly 35-45 mph windy mountain roads.

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...First, DEF usage is far higher than I thought it would be . . . I know it was completely topped off by my dealer (my very close cousin and his amazing crew) . . . I arrived home with the DEF tank at the one-quarter fill level.
Don't know about in your case, but for me, using 4WD (high) at low speeds eats DEF quickly. I had about 1.5 hours in 4WD, and it ate about 1/4 of the DEF tank. A subsequent 4WD outing of about 1 hour ate it down to just over half. Not sure how anyone is supposed to make a multi-day overlanding-style trip without carrying two spare 2.5 gal DEF refills. I'm hoping it eats less DEF once I've had it a while, but I doubt it.

...Second, fuses were checked and most were found NOT to be completely seated, which actually surprised everyone at the dealership and they will now be checking this regularly.
Need to check mine. Mine was probably one of the last 2020 diesels to roll off the assembly line, so hopefully they had that sorted – but this is Jeep, so I will for sure check.

Third, this engine is an ABSOLUTE JOY to drive . . . passing power at any speed is amazing with absolutely no drama of a whining engine or sudden/harsh transmission downshifts on uphill mountain interstate highways (I-70 between Denver and Grand Junction, CO; and I-17 between Flagstaff and Phoenix). This engine pulls like a freight train and accelerates from 60 to 80 mph almost as quickly as 2007 BMW 335i. Simply incredible...
Could not agree more. This engine pulls harder than the pre-TDI-fix VW Toureg I had, and that was insane. The harsh downshifting and engine screaming on mountain passes at high altitudes on my previous JKs was something I simply did not want to repeat with the JL. The JL diesel doesn't even break a sweat. And somewhere around the 500 mile mark, the transmission/engine decided it had learned my driving style and just screams now. I think some people who report the pedal feel being sluggish must be test-driving new vehicles with 10-50 miles on them or something. Either that or I learned not to be shy about putting my foot into the accelerator, lol.
 

StuartR

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2020 Wrangler JLU Diesel
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Wow... I am showing 16.5 on the vehicle computer. Running 37"s with a 2.5" lift and a 52" curved light bar. Considerable weight in the back including my recovery gear and my winch that I have on a hitch plate to mount front or rear as needed. Also steel 17" wheels.
 

AZ-Chris

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I just got back from a long weekend in Telluride, and I'm even more in love with this rig than ever! With the exception of a Warn Zeon 10s winch, Rock-Slide Engineering Step Sliders and an ARB twin compressor mounted under the passenger seat (what I considered to be minimum required trail gear) I'm still bone stock.

I cannot believe the responsiveness and POWER this engine provides. I averaged 28 mpg on the trip between Phoenix and Telluride holding 70 mph on the highway/open road. On my return trip, I filled up at Cortez, CO and made it home (426 miles) with 52 miles of range to spare . . . essentially realizing the advertised range of 500 miles per tank . . . and that included a 10-mile detour down Schnebly Hill Road in Sedona with portions in 4Lo. Passing on mountain grades is effortless.

While In Telluride, I completed Imogene, Black Bear and Ophir Pass trails . . . I couldn't be more pleased with this vehicle . . .

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