X15 Efficiency vs Performance

Discussion in 'Trucks [ Eighteen Wheelers ]' started by rjs, Jan 12, 2019.

?

Which X15 overall?

  1. Performance

  2. Efficiency

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  1. bonder45

    bonder45 Road Train Member

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    That I do not know.


    565 - 4.30
    605 - 4.10
     
  2. ravisidhu05

    ravisidhu05 Bobtail Member

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    What weight and how many axles you pull with these motor
     
  3. Masonry

    Masonry Bobtail Member

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    How did your purchase work out… I have exactly the same truck 565 w/ 1850 Torque but mines an automatic so far everything’s good
     
  4. Short Fuse EOD

    Short Fuse EOD Road Train Member

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    3.25 rears 18 sp 22.5 low pro pull Midwest to west. Got a 565/2050 performance. Anyone bump up to 605/2050 from a 565/2050? Thoughts?
     
    2013Maxx Thanks this.
  5. bonder45

    bonder45 Road Train Member

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    4 axle trucks, 3 axle trailers

    Pulling 100-135k lbs
     
  6. ravisidhu05

    ravisidhu05 Bobtail Member

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    Your 605 is x15 productivity series your truck is going to pull load better then performance series with little better MPG.
     
  7. dhillon05

    dhillon05 Bobtail Member

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    i am going to buy cummins x15 efficency series i am going to start dry van reffer and flat bed from canada to us can any one recommend me what horse power and torque whould be best for me. i am asking because its my first truck for cummins
     
  8. bonder45

    bonder45 Road Train Member

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    500 for fuel mileage with an auto
     
    dhillon05 Thanks this.
  9. ravisidhu05

    ravisidhu05 Bobtail Member

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    You can only get high 500v in productivity series. That’s the best so far.
     
  10. Midwest Trucker

    Midwest Trucker Road Train Member

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    450 hp 1650 torque with endurant 12 speed auto. 2.79 gears and 22.5 low pro tires.