X-15 Cummins thread

Discussion in 'Peterbilt Forum' started by KB3MMX, Feb 26, 2018.

  1. Diesel Dave

    Diesel Dave Last Few of the OUTLAWS

    7,132
    13,779
    Jan 20, 2010
    Hesperia, Ca.
    0
    Don’t get him started on more jibberish again.
     
    Dave_in_AZ, KB3MMX, 6rider and 5 others Thank this.
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. Diesel Dave

    Diesel Dave Last Few of the OUTLAWS

    7,132
    13,779
    Jan 20, 2010
    Hesperia, Ca.
    0
    @Trucker186 , why don’t you go start your own personal thread on 1 millions miles Cat thread. Many will chime in, cause there are many many members that know more than you think on these motors first hand. I personally have one and drive one.
    Here’s a hint, STOP “Hi-jacking this thread. Let it be.........
     
  4. Hegemeister

    Hegemeister Road Train Member

    1,912
    1,660
    Jun 16, 2012
    Mechanicsburg, PA
    0
    X15 performance 525/1850 at 30k running great, getting stronger, not burning any oil between PMs. Liking it.!
     
  5. Trucker186

    Trucker186 Medium Load Member

    447
    365
    Jan 29, 2019
    0
    Oh my god im a dumb ### i thought this was the c15 vs x15 thread oh my god. I am very sorry
     
  6. REO6205

    REO6205 Trucker Forum STAFF Staff Member

    12,587
    56,874
    Feb 15, 2014
    California.
    0

    It's being worked on.
     
  7. Trucker186

    Trucker186 Medium Load Member

    447
    365
    Jan 29, 2019
    0
    I do have a question and correct me if im wrong but arent the newer dpf engines horrible on fuel mileage so they went to the newer transmission that in your 2nd to last and your last gear is very high geared?
     
  8. Trucker186

    Trucker186 Medium Load Member

    447
    365
    Jan 29, 2019
    0
    Please remove all the old stuff i posted
     
    KB3MMX and spsauerland Thank this.
  9. Accidental Trucker

    Accidental Trucker Road Train Member

    3,084
    6,611
    Jun 4, 2015
    0
    I've got a 2019 t680 with an MX, and it does the same thing, vibrates under heavy load around 1200 rpm. Not horrible, but noticeable. Sounds like it's not the engine but the drive line....

    There are some stories about Paccars leaving the factory with unbalance yokes?
     
    KB3MMX Thanks this.
  10. Hegemeister

    Hegemeister Road Train Member

    1,912
    1,660
    Jun 16, 2012
    Mechanicsburg, PA
    0
    Not for nothing, but the homework I've done showed you don't want to pull below 1300 RPM. I run mine from 1300 up to about 1600 or 1700.
     
    Dave_in_AZ and KB3MMX Thank this.
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.