Best Fuel Mileage?

Discussion in 'Trucks [ Eighteen Wheelers ]' started by NSteinbecker, Nov 1, 2011.

  1. NSteinbecker

    NSteinbecker Bobtail Member

    Oct 19, 2011
    Anyone know which semi gets the best fuel mileage?
  2. Pablo-UA

    Pablo-UA Road Train Member

    Oct 11, 2010
    Borispol, Ukraine
    this is equation with too many variable values, and it is a quation of high mathematics....
    123456, grizzly and NSteinbecker Thank this.
  3. Displaced Yooper

    Displaced Yooper Light Load Member

    Oct 18, 2010
    Detroit, MI
    Anything mechanical rises no higher than #2 on the list of important factors when considering fuel mileage.

    The driver is #1 on that list. How the equipment is driven & maintained has the biggest impact, positive or negative.
    NSteinbecker and The Challenger Thank this.
  4. Frenzy

    Frenzy Medium Load Member

    Mar 24, 2008
    Seattle, WA
    The one I drive.
    (Dice1's might be better thou)
  5. JohnP3

    JohnP3 Road Train Member

    Feb 21, 2010
    Rock Creek B.C. Canada
    If you are looking at the a group of engines and want to know which one has the best fuel mileage there are EPA stickers on all engines. It has a section that has the number of MM3 of fuel it takes to make the rated HP. The lower the number the better. Driver, rolling resistance, aerodynamics, road conditions, weather, all have an effect.
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  6. Dice1

    Dice1 Road Train Member

    Jul 1, 2011
    Bessemer City, NC
    Got 14 mpg bobtailing but never that much with a trailer.
  7. rollin coal

    rollin coal Road Train Member

    Mar 29, 2008
    Read somewhere that driver habits are the biggest impact on economy by as much as 30% same truck, same conditions 1 driver with good habits another with poor. Maintain it, and drive it right.
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  8. Scania man

    Scania man Road Train Member

    Jul 1, 2011
    I'm not sure if Ure asking this because you're gonna buy a new truck if you are here is something worth considering : I've always driven 6*2 or 4*2 tractors, I know the scania r620 6*2 will do 8 - 10 mpg depending on terrain, weight etc, I've recently driven a 6*4 double drive scania r620 and it does 7-8 mpg max, that's a big difference, dice had a great thread and it dealt alot with frictional losses and these figures represent the findings on that thread, so it might be worth considering opting for a 6*2 lift axle instead of a 6*4 as it normally means 1-2 mpg because you will only have one diff instead of three and less shafts bearings etc,
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  9. lostNfound

    lostNfound Road Train Member

    Jun 28, 2007
    Home of the Stampede
    I am consistently getting 15%-20% better mileage than 2 identically spec'd trucks on the same haul with the same load. I run the same speeds (even slightly faster). The biggest difference is that I keep the engine RPM in the optimum work zone, especially when climbing hills.
    3gCowboy and NSteinbecker Thank this.
  10. Scania man

    Scania man Road Train Member

    Jul 1, 2011

    That's not surprising, a good consciencous driver can make a massive difference ! Just looks like you know how to drive
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