Chevrolet’s 2016 Colorado Duramax Turbo Diesel

Discussion in 'GM' started by xcel, Jul 29, 2015.

  1. xcel

    xcel PZEV, there's nothing like it :) Staff Member

    Hi All:

    The 2016 Chevrolet Colorado 4WD Z71 equipped with the 2.8L Duramax Turbo Diesel performed well.

    I hit the heaviest stop and crawl in earnest with the following result displayed.

    [​IMG]
    40.5 mpg after 75.0 miles indicated but I was not about to give up.​

    A 45+ minute stop and crawl on the 5 from Oceanside all the way to Encinitas dragged her aFCD down from 41.8 to 40.2 mpg as I pulled into a Shell in Del Mar along the 5.

    [​IMG]
    After 93.2 miles indicated, 95.0 actual miles and taking on 2.459 gallons to top off, the results were a fair 38.6 mpg actual.

    [​IMG]

    What hurts is that the Z71 trim is shod with Goodyear Wrangler All-Terrains that are as low rolling resistance as swimming in mud. Not that bad but they do not roll worth a damn. In addition, the 6-speed AT will not shift into 6th until 53+ mph at which point you can relax to no less than 51 to 52 mph actual or she will downshift to 5th. There is no reason I can think of to keep a diesel above 1,300 at low loads yet this is configured to keep R's above 1,500 to 1,750 far far to often.

    Actual speed is 1 mph under CC and the Speedometer so locking in 6th for the 50 mph steady state - Speed vs FE - tests could be problematic. Coming up and we shall see.

    Wayne
     
  2. xcel

    xcel PZEV, there's nothing like it :) Staff Member

    Hi All:

    With the calibration drive providing an aFCD offset, I spent some time just after midnight to drive in circles with the ‪Duramax equipped 4WD 2016 Chevrolet Colorado ‪Z71. All the while listening to ‎80s on 8 for a few hours as the steady state FE testing siren song called my name. Wish I was able to drive this ‎turbo‪ ‎diesel equipped ‎pickup ‎truck to a beautiful location instead. ;)

    [​IMG]
    It’s time!​

    21/29 mpg rated 2016 Chevrolet Colorado Z71 4WD with the 2.8L Duramax Turbo Diesel - Speed vs Fuel Economy results.

    For the steady state Speed vs Fuel Economy tests, temps ranged from 57 to 59 degrees F with calm winds on the NB/SB repeated runs.

    50, 55, 60, 65 and 70 mph actual speed was 49, 54, 59, 64, and 69 mph indicated per both the CC setting and OEM speedometer.

    RPM at 60 mph was indicating a rather high 1,550 RPM vs. 1,535 calculated. A bit high for a modern turbo diesel a this low a speed imho.

    [​IMG]

    The EPA highway (29 mpgUS) EPA highway crossover occurred at 67.96 mph which fits smack dab in the middle of our honesty criteria of 65 to 69 mph.

    #FindNewRoads and she sure does love the ‪open road!

    Wayne
     
    wxman and BillLin like this.
  3. Prozac

    Prozac Well-Known Member

    I think that it is a great looking truck. To be fair, it would have been nice to see them give you a 2WD to make it a better comparison to the EcoDiesel that you tested.

    While I would prefer the full size truck, I know plenty of people that prefer the mid-size due to things like parking and maneuverability. My dad is one of those people still driving around, though very little, in his 01 Ranger.
     
    xcel and BillLin like this.
  4. Seems like they did they same as with the cruze diesel. You want the diesel, you need a bunch of extras. No W/T model.
     
    xcel likes this.
  5. xcel

    xcel PZEV, there's nothing like it :) Staff Member

    Hi All:

    Why should you consider a ‪‎Turbo‬ ‪‎Diesel‬ instead of gasoline fueled whatever?

    The Last Drive

    2016 Chevrolet Colorado Z71 4WD Duramax

    [​IMG]

    The most efficient 4WD pickup available in the U.S. is the 20/29 mpg rated 4WD Chevrolet‬ ‎Colorado‬ in Z71 trim when equipped with the 2.8L ‪‎Duramax‬.

    It saved its best for last.

    [​IMG]
    45.4 Mpg - 78.9 Miles - 43.6 mpg over 80.4 miles actual.​

    Wayne
     
  6. Prozac

    Prozac Well-Known Member

    That is fantastic fuel economy out of a truck!
     
    xcel likes this.

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