Fuel mileage

Discussion in '1997 - 2003 Ford F150 Truck Forum' started by whomrig, Feb 9, 2016.

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  1. whomrig TOTM Winner Founding Member Southwest Chapter

    Took the F-150 out for a spin today, all highway. I did the math and we got 18.9 mpg
    I think we did quite well also the rig turned 139k miles today
     
    whomrig, Feb 9, 2016
    #1
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  2. FTZ HAIC Staff Member Oregon Chapter Founding Member

    Pretty good, especially for a 4x4.
     
    FTZ HAIC, Feb 9, 2016
    #2

  3. whomrig TOTM Winner Founding Member Southwest Chapter

    if I add in the 10% for speedo error due to larger than stock tires, that equates to 20.8 mpg
     
    whomrig, Feb 9, 2016
    #3

  4. TK Archer

    I'm lucky to get 16 mpg from mine but I have a lead foot.
     
    TK Archer, Feb 16, 2016
    #4

  5. FTZ HAIC Staff Member Oregon Chapter Founding Member

    Gear ratio, engine, driving habits, etc so many variables it's hard to get a apples to apples comparison.
     
    FTZ HAIC, Feb 16, 2016
    #5

  6. whomrig TOTM Winner Founding Member Southwest Chapter

    I have 33" tires, 3:55 gear ratio and automatic. I tend to drive easy.
    I have also replaced all o2 sensors, have newer spark plugs and have kept up the maintenance.
     
    whomrig, Feb 17, 2016
    #6
    FTZ HAIC likes this.

  7. FTZ HAIC Staff Member Oregon Chapter Founding Member

    Replacing O2 sensors is definitely a big plus. Many people don't because its one of those things they tend to forget until they get a code telling them its bad.
     
    FTZ HAIC, Feb 17, 2016
    #7

  8. whomrig TOTM Winner Founding Member Southwest Chapter

    yes out of sight out of mind
    and of course the cost
     
    whomrig, Feb 17, 2016
    #8

  9. Albroswift

    8 to 10 but who's counting!
     
    Albroswift, Feb 24, 2016
    #9

  10. FTZ HAIC Staff Member Oregon Chapter Founding Member

    Is that for the 98? Even with a blower, you can do much better! My Roushcharger, on a 2006 which is crewcab plus each cab size is 500lbs more on the 2004-2008 than 1997-2004, I'm getting double that. Those guys who tuned it, sounds like they mainly went for wide open tuning, and didn't spend most of their time on part-throttle tuning. (Not unusual, spending the hours upon hours for it gets very expensive). Do you have an SCT tuner or chip?
     
    FTZ HAIC, Feb 24, 2016
    #10
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