Terrible 2.0 gas mileage?

  1. Megsxr750

    Megsxr750 Well-Known Member

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    I've never noticed the Old Willy's Jeep in the background before, pretty cool!!
     
  2. Eduardov918

    Eduardov918 Member

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    #92 Feb 12, 2019
    Last edited: Feb 12, 2019
    I was getting anywhere from 16.5-19.5 mpg on my 2018 2.0 JLU Rubicon. These past few weeks winds up here in Chicago have been rough on mpg though. I got 315's KO2's installed a few days ago so I will see how bad they impact the mpg.

    IMG_4954.jpg
     
  3. TheDon13

    TheDon13 Member

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    Central Arkansas rolling hills...cruise set at 68 mph...20.9 mpg all day. 2.0 turbo
     
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  4. word302

    word302 Well-Known Member

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    Yes but the OP readily admits to driving 85+. It only takes a middle-school understanding of physics to figure out why his MPG is terrible.
     
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  5. pablo_max3045

    pablo_max3045 Well-Known Member

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    Agreed.
     
  6. pablo_max3045

    pablo_max3045 Well-Known Member

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    Just curious..
    the 2.0 Turbo always has the 48v mild hybrid in the states?
    We cannot get the hybrid part here in Germany. So I see very little reason to get it over the the 2.2 turbo diesel engine as there is a big hit in MPG. Remember that petrol is like $6/gallon here. This engine is (diesel) Euro 6d-t emissions as well, so considered to be "clean".
    I was also really wondering why they would use the 3.0 diesel in the US and not the 2.2 we have, given that the 3.0 eco diesel is know (in europe at least) to be a pretty crap engine. The 2.8 was reliable, but stupidly slow.
     
  7. timn1984

    timn1984 Active Member

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    also remember the windshield......
     
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  8. ormandj

    ormandj Well-Known Member

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    Your dealership is wrong, and higher inflation pressure should equate to lower rolling resistance increasing MPG at the cost of comfort and traction.

    I've personally validated my TPMS is accurate to less than 1 PSI (not sure exactly how high precision is since they only output whole numbers not floats) (validated against two of my Longacre racing gauges good for 1/10th PSI.) If I inflate to 31.9, they read 31. 32 and they read 32.
     
  9. OP
    OP
    dustanner

    dustanner Active Member

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    Well, check engine light was due to a loose sensor. Glad it was a quick fix but bummed it didn’t solve the MPG. I’ve just reset the MPG average to see if it levels out. The dealer said give it about 5k miles to beak in.
     
  10. Capt-Zoom

    Capt-Zoom Well-Known Member

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    With a very heavy foot (83-88mph) i have averaged 21.2mpg in both the 18 plus and 19 jluss 3.6L Auto, in Colorado anywhere from 5000ft to 9,000ft above sea level. Running 87 octane. Have an extra 200 or so lbs of accessories plus my 215 lbs.

    Your 2.0 should be getting better.
     
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  11. ormandj

    ormandj Well-Known Member

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    ECU will take a bit to adapt depending on what sensor it was. If it was related to emissions and caused you to run rich, you may see an improvement, but it may take a while. Either way, good luck, but driving 80 that mileage doesn't sound completely out of line. I get around 17-20 calculated on the highway doing 65-70 with 315 Nitto RG tires/winch/etc. Once I start getting much above 70 mph, mpg drops like a rock. I get 15-16 in the city with a fair number of stoplights.

    If you're getting 13 and you're not driving it like a sports car, and you're keeping it at 70 and under, something is wrong.
     
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  12. OP
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    dustanner

    dustanner Active Member

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    Thanks! That’s great info. Here’s the repair details if anyone’s curious.

    2B66D7F6-AB78-495B-B227-D570199A2551.png
     
  13. nerubi

    nerubi Well-Known Member

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    No, it is sucking in all the pot smoke out there and getting "high" mileage. :CWL:
     
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  14. Blackwing 55

    Blackwing 55 Active Member

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    Spot on, mine too, even got it up into the mid 25 mpg at 60 mph on a long trip to New Mexico
     
  15. redroserancher2

    redroserancher2 New Member

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    I have a JLUR 2.0 and live at 6000 feet and drive mainly mountains here in Southeastern Utah. I am averaging 21.2 MPG. We have a 80mph speed limit on the freeway I mostly drive and it decreases down to 18.4. I admit that few of my miles are in the city and I have a feather foot most of the time.
     
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