Which engine is better

Discussion in 'Questions From New Drivers' started by JayaP, Sep 7, 2021.

  1. JayaP

    JayaP Bobtail Member

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    San antonio tx
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    Hello everyone still looking to buy a truck I like 2 option and need help with opinions
    A 04 Pete 379 with a C15 13 speed OR
    05 kenworth w900 with a Cummins ISX 13 sp (450 hp)
    Please guide me in the best route will be hauling cement
     
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  3. SoulScream84

    SoulScream84 Road Train Member

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    Have you driven them, had them inspected by a qualified mechanic, seen maintenance records, and ran a fluids analysis?
     
  4. skallagrime

    skallagrime Road Train Member

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    Individual taste to a degree, both trucks and engines have their own shares of good and bad to them.

    On the average, Isx probably a little bit cheaper to fix, cat, take care of the fluids and dont do stupid things with her and youll have less small things go wrong, but when they do, theyll cost you more.

    I like the cats and kws for working on em myself, but i dont know the cummins or peterbilts as well either
     
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  5. Brettj3876

    Brettj3876 Road Train Member

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    Cat all the way. What's the condition of both. The stock MBN cats weren't good on fuel but they can be reflashed.

    Possibly might still have 6nz. Someone that knows will chime in
     
  6. JayaP

    JayaP Bobtail Member

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    Aug 24, 2021
    San antonio tx
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    Both trucks look great going to look at them today owner took good care of them. Pete has 900 k and the knw has 500 k
     
  7. Chieftains

    Chieftains Medium Load Member

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    What does he want for em
     
  8. Ridgeline

    Ridgeline Road Train Member

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    Which one dyno's better?
     
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  9. Arctic_fox

    Arctic_fox Experienced mx13 execrator

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    Cats can ususally take a lot more small abuse and typically dont blow up. HOWEVER, when they DO blow up they tend to be pretty pricy to fix. ISX tends in my experince be easier to work on if you spin your own wrench and tend to be cheaper to find parts for. The downskde is there was a run of them that had gernadeing fuel pumps that could brick the block and they tend to be a lot more picky on maintaince.
     
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  10. JayaP

    JayaP Bobtail Member

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    Aug 24, 2021
    San antonio tx
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    Pete is 48k
    Know is 30k
    What you think
     
  11. God prefers Diesels

    God prefers Diesels Road Train Member

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    Both of them are competitive engines. The KW is arguably a better truck, and has another five years before overhaul. The Pete has one year.

    The KW has 400k less miles on the engine, tranny, gears, ect. The whole truck has been ran less.

    The engine is just one piece of the puzzle, and there's nothing wrong with that generation ISX that's a deal breaker in comparison to a Cat.

    I'd get the better truck.
     
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