Fuel consumption vnl d13

Discussion in 'Volvo Forum' started by Milan700, Jan 23, 2020.

  1. Milan700

    Milan700 Bobtail Member

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    Jan 23, 2020
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    Hello to all.
    I have 2014 volvo vnl 740
    It has I shift 2,64 ratio 430hp. Xe
    My fuel consumption right now is around 5.3 mpg
    Before was around 6mpg
    I change injectors 150 000 miles also was around 6mpg from first day.
    What can be a problem
     
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  3. Socal Xpress

    Socal Xpress Road Train Member

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  4. Milan700

    Milan700 Bobtail Member

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    Jan 23, 2020
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    I am pulling flatbed. So it's ok to be around 6.5 mpg. But not under.
     
  5. Freightliner Classic

    Freightliner Classic Light Load Member

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    look did u put a bigger set of injectors in or the same. They are rubber orings on them they could be leaking
     
  6. Milan700

    Milan700 Bobtail Member

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    Jan 23, 2020
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    Unfortunately I didn't do that by myself because I didn't have tools to perform that.
    Truck dont have power.
    Using fuel more than any other truck what I have. I am desperate. Idk what to do. And I am scared to go in shop because they will start changing parts and that will take me nowhere
     
  7. I glide 47

    I glide 47 Road Train Member

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    Fuel mileage goes down in the winter cold air is harder to drive thru ,winter blend fuels grease and oils are thickened idle time increases !
     
  8. Socal Xpress

    Socal Xpress Road Train Member

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    Now I have never heard or seen the Dealer offering bigger injectors for the D13 motor but would be interested in seeing if that was even an option.
    Also only seen the D13 hopped up to 550hp and 1900tq but again maybe someone has done more
     
  9. 05vnl670

    05vnl670 Light Load Member

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    Feb 17, 2013
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    When you drive and is under 35 deg outside does your engine temperature go below 170?
     
  10. Socal Xpress

    Socal Xpress Road Train Member

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    Curious on where this would go. Can you explain?
     
  11. 05vnl670

    05vnl670 Light Load Member

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    Feb 17, 2013
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    I had a bad thermostat mine temperature was going down to 130. Engine is not running efficiently at this temperature and the ECU is shooting fuel to warm up the engine.
     
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