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New to me - SDP c15, what can I expect?

Discussion in 'Trucks [ Eighteen Wheelers ]' started by bc400, Apr 12, 2019.

  1. Apr 12, 2019 #1
    bc400

    bc400 Bobtail Member

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    Aug 31, 2016
    0
    Recently bought another truck with a SDP prefix c15, I've only ever dealt with E model cats and one 6nz, safe to say they are pretty much the same engine. My new truck is powered with a SDP cat, it only has 600k original miles and is already tuned. Can I expect this engine to run and feel like my 3406e? So far from my 600 mile trip home with the new truck I am really liking this engine. At 70-75 mph bobtail I averaged about 8.7 - 9.0 mpg I assume that isnt to bad for a 389. Water temp runs about 190F, I was thinking about putting a 170F thermostat before summer starts is this a good idea? Little to no blow by, fresh oil when I pulled the dipstick. Any general tips to prolong the life of this engine, what should or should not be done?
     
    bc400, Apr 12, 2019
    bc400, Apr 12, 2019
    #1
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  3. Apr 12, 2019 #2
    Ruthless

    Ruthless Road Train Member

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    The City.
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    Ruthless, Apr 12, 2019
    Ruthless, Apr 12, 2019
    #2
  4. Apr 13, 2019 #3
    AModelCat

    AModelCat Road Train Member

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    Canuckistan
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    Unless a bunch of stuff "fell" off, they were one of the worst CATs ever produced.
     
    AModelCat, Apr 13, 2019
    AModelCat, Apr 13, 2019
    #3
    QUALITYTRUCK, Brettj3876, pushbroom and 1 other person Thank this.
  5. Apr 13, 2019 #4
    pushbroom

    pushbroom Road Train Member

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    He did mention it was already tuned. If that was the case should be ok.
     
    pushbroom, Apr 13, 2019
    pushbroom, Apr 13, 2019
    #4
    Brettj3876, AModelCat and spsauerland Thank this.
  7. Apr 13, 2019 #5
    Brettj3876

    Brettj3876 Road Train Member

    11,257
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    Land of local
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    The company we work along side with did the same thing. Went to auctions bought a bunch for dirt cheap and "fixed" em right
     
    Brettj3876, Apr 13, 2019
    Brettj3876, Apr 13, 2019
    #5
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