Cat 6NZ 475HP and 550HP difference

Discussion in 'Trucks [ Eighteen Wheelers ]' started by NFDDJS, Oct 3, 2012.

  1. gahjeh

    gahjeh Bobtail Member

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    Jan 1, 2014
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    Mr Hanney I Have C-12 Pulling End Dump Cant Get Any Fuel Milage ,Can You Help? Any Ideas. Used To Get 6.5 When It Had 100,000,000 Miles On It. Since I Had It Overhauled I Am Lucky To Get 5.0 Mpg.
     
    Last edited: Jan 1, 2014
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  3. truckman29801

    truckman29801 Medium Load Member

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    100 million miles? WOWWWWWWWWWWWWWWWWWW
     
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  4. Lalito1234

    Lalito1234 Light Load Member

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    Oct 2, 2013
    chicago il
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  5. truckman29801

    truckman29801 Medium Load Member

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    on a serious note did CAT do the overhaul?
     
  6. dude6710

    dude6710 Road Train Member

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    Sounds like you got a new low nox tune. My truck had one and I got 4.8-5.3 mpg. Got a pdi tune and turbo and i get 6.1 with winter blend and idling a lot. Summer was a consistent 6.7+mpg. Mr Haney can get you a upgraded turbo and a tune an ull be very surprised.
     
  7. Cetane+

    Cetane+ Road Train Member

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    I had a 01 6NZ, 18B, 46 rears with 3.90, 11R24.5. I wasted the money back in 02 at milton and got the same results. No difference in power.
     
  8. Lalito1234

    Lalito1234 Light Load Member

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    chicago il
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    on my purple flattop peterbilt379(has a single turbo C-15 475hp) it used to pull dryvans in 2012 wit roadrunner and it used to give 4mpg -.- lol but den wen peterbilt did the overhaul it started to give 6mpg still wit the dryvan lol non of my truckss pull dryvans anymore tho
     
  9. Lalito1234

    Lalito1234 Light Load Member

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    rears 3:90 are strong, so then there is the full proof that dealer & cat dealer turn ups dont work, only work to burn more fuel. a.k.a. just wasting money
     
  10. magoo68

    magoo68 Road Train Member

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    st malo mb canada
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    275 years at 100mph x 70 hrs/week .. Someone failed math I think lol
     
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  11. Claudio Hysi

    Claudio Hysi Bobtail Member

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    Nov 12, 2015
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    Maybe he meant only one mil hahaha
     
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