FUEL HELP better fuel mileage

Discussion in 'Freightliner Forum' started by GHOST1911, Jul 28, 2026.

  1. GHOST1911

    GHOST1911 Bobtail Member

    5
    1
    Jun 27, 2026
    0
    I have a 2004 classic xl 525 cat twin turbo
    Looking for information on how to get better fuel mileage.
    Thank you in advance
     
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  3. Big Road Skateboard

    Big Road Skateboard Road Train Member

    7,698
    44,592
    May 2, 2021
    0
    You could
    : Drive faster
    : Drive slower
    :Fix boost leaks
    :Turn off the fan
    :Turn off the A/C
    :Remove the trailer
    :Regear it
    :Better tires
    :New Injectors
    :Overhaul it
    :Stop Driving
    : Don't use the high side of trans

    Yeah, Vague questions deserve vague answers
     
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  4. 062

    062 Road Train Member

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    Buy a Volvo.
     
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  5. IH Truck Guy

    IH Truck Guy Road Train Member

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    Just put less fuel in it.
     
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  6. drh72

    drh72 Light Load Member

    182
    310
    Aug 19, 2012
    Northeast Minnesota
    0
    What are you getting for fuel mileage now? The easiest way that doesn't cost money is to try progressive shifting (if you are not already). Use the terrain to your advantage, check tire pressures often and slow down.
     
    Concorde Thanks this.
  7. bad-luck

    bad-luck Road Train Member

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    Nov 16, 2013
    Baltimore, Maryland
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    Is your engine an MBN motor?
     
  8. Concorde

    Concorde Road Train Member

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    Jun 29, 2016
    West Melbourne Florida
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    Charge more and don’t worry about mpg :)

    IMG_8655.png
     
  9. Big Road Skateboard

    Big Road Skateboard Road Train Member

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    That's what I do, but that ain't enough.
     
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  10. Concorde

    Concorde Road Train Member

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    Jun 29, 2016
    West Melbourne Florida
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    Lol, it’s never enough!

    Leaving El Paso today heading to Florida..thinking to take I-20 then drop back down to 10 via I-49. Found cheaper fuel on that route and I don’t have to deal with all the construction, San Antonio and Houston.

    Done this load many times and looking for a change of scenery…still debating.
     
  11. bryan21384

    bryan21384 Road Train Member

    16,219
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    Sep 18, 2009
    Memphis, TN
    0
    Go no faster than 65. Make sure you have even weight distribution on your trailer. Keep your truck and motor as clean as possible. Use your cruise control as often as possible. Stay on top of your maintenance.
     
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