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2014 Volvo 780 Ishift - Bad Fuel Mileage

Discussion in 'Ask An Owner Operator' started by haider99, Apr 10, 2018.

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  1. Apr 10, 2018 #1
    haider99

    haider99 Medium Load Member

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    Mar 19, 2014
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    It seems my Volvo with a D13 is getting poor fuel mileage. Recently I did a 1050 mile trip with 30,000 Lbs in a container one way and back haul with around 7000lbs - mostly flat roads.

    I purchased 780 Litres of fuel = 206gallons. My truck is limited to 105kmph = 65mph

    Am I getting bad mileage or this is normal due to cold weather? What can I check mechanically that might be hurting the fuel mileage?


    Thank you
     
    haider99, Apr 10, 2018
    haider99, Apr 10, 2018
    #1
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  3. Apr 10, 2018 #2
    Big_D409

    Big_D409 Medium Load Member

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    Dec 1, 2012
    Robertsdale, AL 36567
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    I wouldn't base your fuel mileage on one trip. Better to figure out a 30 day avg and go from there.
     
    Big_D409, Apr 10, 2018
    Big_D409, Apr 10, 2018
    #2
  4. Apr 10, 2018 #3
    pmdriver

    pmdriver Road Train Member

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    How was the wind?
     
    pmdriver, Apr 10, 2018
    pmdriver, Apr 10, 2018
    #3
  5. Apr 10, 2018 #4
    DUNE-T

    DUNE-T Road Train Member

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    Detroit, MI
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    5mpg? It is very bad. I doubt he drove 1050 miles always having head wind
     
    DUNE-T, Apr 10, 2018
    DUNE-T, Apr 10, 2018
    #4
    77fib77 Thanks this.
  7. Apr 10, 2018 #5
    Onemanshow

    Onemanshow Light Load Member

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    Jan 29, 2016
    richmond hill on
    0
    6.4 grossed out reefer brand new volvo ishift 445 or455hp d13 had it for half a year. always 100kmh/62mph
    all them aero trucks are the same milage. same conditions with 389 500paccar im getting 5.9 steady. running from Toronto to NYC and Philly areas
     
    Onemanshow, Apr 10, 2018
    Onemanshow, Apr 10, 2018
    #5
  8. Apr 10, 2018 #6
    Steel Dragon

    Steel Dragon Road Train Member

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    Transmission slipping.
     
    Steel Dragon, Apr 10, 2018
    Steel Dragon, Apr 10, 2018
    #6
  9. Apr 10, 2018 #7
    haider99

    haider99 Medium Load Member

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    This could be. I get clutch protection msg often. I believe transmission is still under warranty and I will have it checked out.
     
    haider99, Apr 10, 2018
    haider99, Apr 10, 2018
    #7
    Steel Dragon Thanks this.
  10. Apr 10, 2018 #8
    The Kraut

    The Kraut Medium Load Member

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    Sep 5, 2013
    Land of Enchantment
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    Can you please explain how the transmission can slip?
    It's an automated clutch but a manual transmission.
    My fuel mileage is always worse with winter diesel, but headwind is the biggest problem. Can make a difference from 5.0 to 7.9.
    Heading west thru the Rockies is always worse than east, most of the time it's southwest or northwest winds.
     
    The Kraut, Apr 10, 2018
    The Kraut, Apr 10, 2018
    #8
    Steel Dragon Thanks this.
  11. Apr 10, 2018 #9
    Steel Dragon

    Steel Dragon Road Train Member

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    Transmission contains a clutch.
    Clutch plates are worn,not enough friction,to move the truck in the way it was designed.
    Who the #### knows...:biggrin_25524::biggrin_25525:
     
    Steel Dragon, Apr 10, 2018
    Steel Dragon, Apr 10, 2018
    #9
    77fib77 Thanks this.
  12. Apr 10, 2018 #10
    Steel Dragon

    Steel Dragon Road Train Member

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    I have 2 100 gallon tanks but even on empty can only add about 140 gallons at a fill up.
    How are you testing your mpg?
     
    Steel Dragon, Apr 10, 2018
    Steel Dragon, Apr 10, 2018
    #10
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