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X15 vs DD16

Discussion in 'Ask An Owner Operator' started by Leftlanemilktrain, Aug 11, 2020.

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  1. Aug 11, 2020 #1
    Leftlanemilktrain

    Leftlanemilktrain Bobtail Member

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    Aug 4, 2020
    Michigan
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    How does a X15 pull against a DD16 if anyone has run both? Also any major issues with either under 300k? Next thing is any noticeable differences between x15 565 and 605 in performance?
     
    Leftlanemilktrain, Aug 11, 2020
    Leftlanemilktrain, Aug 11, 2020
    #1
    singlescrewshaker and PoleCrusher Thank this.
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  3. Aug 11, 2020 #2
    PoleCrusher

    PoleCrusher Road Train Member

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    Good question, I hope someone can answer. I do know everyone I've talked to with the performance X15 has said it's a great engine.
     
    PoleCrusher, Aug 11, 2020
    PoleCrusher, Aug 11, 2020
    #2
    Leftlanemilktrain and singlescrewshaker Thank this.
  4. Aug 11, 2020 #3
    uncleal13

    uncleal13 Road Train Member

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    Don't know about performance. I have a DD16 it gets about 0.8 mpg better pulling 140,000 lbs than buddies International HX520 with 565 X15.
     
    uncleal13, Aug 11, 2020
    uncleal13, Aug 11, 2020
    #3
    magoo68, Leftlanemilktrain and singlescrewshaker Thank this.
  5. Aug 11, 2020 #4
    Eggroll'n Trucker

    Eggroll'n Trucker Light Load Member

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    That must have something to do with the gearing ratio
     
    Eggroll'n Trucker, Aug 11, 2020
    Eggroll'n Trucker, Aug 11, 2020
    #4
    alds and Leftlanemilktrain Thank this.
  7. Aug 11, 2020 #5
    Carlinho

    Carlinho Bobtail Member

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    Mar 2, 2018
    Harker Heights, Texas
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    Maybe not that big of a difference but the number of places that will service and have Cummins parts far outperforms the amount that have Detroit and paccar parts.....that was my reasoning for getting a truck with a Cummins
     
    Carlinho, Aug 11, 2020
    Carlinho, Aug 11, 2020
    #5
    Leftlanemilktrain Thanks this.
  8. Aug 11, 2020 #6
    Leftlanemilktrain

    Leftlanemilktrain Bobtail Member

    13
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    Aug 4, 2020
    Michigan
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    I currently run a few isx's and am very happy with performance especially after the smoke detectors are eliminated. That being said my mechanic now parks his escalade where his ford ranger used to sit.. Are these newer engines holding together better?
     
    Leftlanemilktrain, Aug 11, 2020
    Leftlanemilktrain, Aug 11, 2020
    #6
    TexasKGB and blacklabel Thank this.
  9. Aug 11, 2020 #7
    uncleal13

    uncleal13 Road Train Member

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    Both 18 speeds, 11R24.5 , 3.91 46,000 lbs rears.
    Maybe break in period, X15 is only 4 months old.
     
    uncleal13, Aug 11, 2020
    uncleal13, Aug 11, 2020
    #7
    singlescrewshaker and Leftlanemilktrain Thank this.
  10. Aug 12, 2020 #8
    Eggroll'n Trucker

    Eggroll'n Trucker Light Load Member

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    Feb 17, 2018
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    That could be it! Also they both have different power curves. So if the driver shifts at a particular rpm that's maximizes power on one engine it may not have the same power curve at that rpm on the other engine.
     
    Eggroll'n Trucker, Aug 12, 2020
    Eggroll'n Trucker, Aug 12, 2020
    #8
    shawnhhllc Thanks this.
  11. Aug 13, 2020 #9
    Midwest Trucker

    Midwest Trucker Road Train Member

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    Aug 31, 2018
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    X15 all year long.

    Depends on how you have the computer specs setup far as power. The X15 has been very reliable.
     
    Midwest Trucker, Aug 13, 2020
    Midwest Trucker, Aug 13, 2020
    #9
  12. Aug 13, 2020 #10
    Cat sdp

    Cat sdp . .

    19,882
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    I thought they discontinued the DD16...?

    So unless your buying used you can’t get one anyways
     
    Cat sdp, Aug 13, 2020
    Cat sdp, Aug 13, 2020
    #10
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