specing a new 579 which engine? isx 15 or MX13

Discussion in 'Peterbilt Forum' started by usedboxman, Oct 17, 2014.

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  1. joseph1135

    joseph1135 Papa Murphy

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    Im just going by my experience with the MX. I've had no problems with it at all.
     
    joseph1135, Oct 21, 2014
    #11
  2. usedboxman

    usedboxman Bobtail Member

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    Thank you for your advice. I m sure I would be ok with the MX motor too.. but I do not want to chance it after getting burned by the Maxxforce disaster...
     
    usedboxman, Oct 21, 2014
    #12
    joseph1135 Thanks this.
  3. Simranjit

    Simranjit Light Load Member

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    Cummins is the way to go. We ran cats since 94' and got a 2011 Pete 387 with a cummins isx 450 and a 2013 t660 same engine and hp both 10 speeds and both run exceptionally. The Pete has 450k on it and the kW has 300k never seen a repair shop and don't intend to either. Mpg is great on both
     
    Simranjit, Nov 18, 2014
    #13
    semi retired semi driver and DrtyDiesel Thank this.
  4. Tlaine

    Tlaine Bobtail Member

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    So far the 2016 mx13 in my opinion is a boat anchor. It has no pull in hills fuel is 6 to 6.5 at best. Reminds me of a mack. Go with the Cummins
     
    Tlaine, Apr 1, 2017
    #15
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