Volvo VNL 670 only 5.2 mpg

Discussion in 'Volvo Forum' started by RoefeSpotOn, May 5, 2016.

  1. khalidjamal123

    khalidjamal123 Bobtail Member

    32
    5
    May 15, 2016
    0
    I know this is an old post, but my truck has the exact specs as your truck with the exact same problem. I am getting 4.1 to 4.5 mpg on light loads and cruising at 68 mph @1400 RPM. did you figure out what the problem was?
     
  2. UltraZero

    UltraZero Medium Load Member

    406
    96
    Jul 18, 2013
    0
    Well, I will say the faster you go, the more fuel you burn. try slowing down to 65mph. Also depending upon the age of your truck, you might want to clean your DPF and change out your sensors that relate to engine management. Also, Check your EGR
     
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