Truckers Report Jobs

Find Trucking Jobs

Company Driver Company Driver Dry Van Dry Van Flatbed Flatbed Refrigerated Refrigerated Specialized Specialized Owner Operator Owner Operator
More Trucking Job Searches ⌄ Fewer Trucking Job Searches
⌃

c15 idle

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Dorsey, Sep 25, 2013.

  1. Sep 25, 2013 #1
    Dorsey

    Dorsey Medium Load Member

    412
    209
    Jan 28, 2012
    Florida
    0
    What rpm's does a c15 idle at(MBN)? I looked at one today and it was idling at 700 rpm. Maybe the gauge is off?

    Also wondering whats the rpm difference in running11R22.5's and 295/75r22.5's?
     
    Dorsey, Sep 25, 2013
    Dorsey, Sep 25, 2013
    #1
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

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

  3. Sep 25, 2013 #2
    Shade Tree

    Shade Tree Light Load Member

    177
    44
    May 15, 2011
    Galloway Ohio
    0
    The RPM is set through the computer settings. Normally set at 700 RPM's. The difference without having the formula in front of me would be top end speed and it will also effect what gear you are going to have to run to get the best torque/speed/gear. Don't change tires without having computer recalculated.
     
    Shade Tree, Sep 25, 2013
    Shade Tree, Sep 25, 2013
    #2
  4. Sep 25, 2013 #3
    little cat 500

    little cat 500 Road Train Member

    1,950
    1,004
    Jan 17, 2010
    Abbottstown PA
    0
    my 6nz idle was 600 i have a bxs it idles at 700
     
    little cat 500, Sep 25, 2013
    little cat 500, Sep 25, 2013
    #3
    cetanediesel Thanks this.
  5. Sep 26, 2013 #4
    bubbanbrenda

    bubbanbrenda Road Train Member

    1,388
    649
    Feb 27, 2011
    Middletown,Oh.
    0
    Big Rig Road Speed Calculator: Semi Truck Road Speed Calculator
    295 isn't a choice on this chart but there is only 3 MPH difference between 11r's and 275's
     
    bubbanbrenda, Sep 26, 2013
    bubbanbrenda, Sep 26, 2013
    #4
  7. Sep 26, 2013 #5
    Mr. Haney

    Mr. Haney Road Train Member

    2,693
    2,035
    Dec 17, 2008
    0
    CAT allows the engine idle speed to be programmed from a low of 600 RPM to a high of 800 RPM. The factory default setting is 700 RPM. Now the difference in fuel burned at idle can be as much as 0.2 of a gallon per hour of fuel between 600 RPM and 700 RPM. A lot of fleet trucks set the idle to 600 RPM to save fuel at idle.
     
    Mr. Haney, Sep 26, 2013
    Mr. Haney, Sep 26, 2013
    #5
    donkeyshow72 Thanks this.
  8. Mar 9, 2022 #7
    Jaymz812

    Jaymz812 Bobtail Member

    3
    1
    Mar 9, 2022
    0
    My 03' MBN C-15 idles at 600

     
    Jaymz812, Mar 9, 2022
    Jaymz812, Mar 9, 2022
    #7
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

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