Here is the secret advice.

Discussion in 'Ask An Owner Operator' started by Oldironfan, Jul 13, 2018.

  1. singlescrewshaker

    singlescrewshaker Road Train Member

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    So when I start seeing only like 50 running wide open, is that a good warning to start getting quotes for an inframe?
     
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  3. driverdriver

    driverdriver Road Train Member

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    Older Detroit's were infamous for burning oil.
    Leak a lot to.
    I wouldn't have anything else though.
     
    Last edited: Jul 14, 2018
  4. MysticHZ

    MysticHZ Road Train Member

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    N
    No ... When you start to see wear metals in your oil samples is when you need to be planning for a rebuild.
     
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  5. singlescrewshaker

    singlescrewshaker Road Train Member

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    Thanks..
    I've only put about ~30k on this truck, & forgot to sample the first go around..
     
  6. singlescrewshaker

    singlescrewshaker Road Train Member

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    I thought the big time leakers were the 2 strokes? 71 & 92 series..?
     
  7. driverdriver

    driverdriver Road Train Member

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    I'm not sure in specific models.
    I'll will say this though , I've been driving Detroit's since the late 80' s and those trucks were if not close to 10 yrs old.
    Most leaked a lot. Wasn't till late 90's that it seemed to not be as much of a problem but still burnt oil.
     
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  8. tommymonza

    tommymonza Road Train Member

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    Exactely. I don't do it so much anymore , nothing out there is worth stressing out out about and running like a maniac.


    I still mash the pedal at the apex of the valley to build the boost before the hill needs pulling.

    But the other 99% of the time the Cruise control is set at 68
     
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  9. RERM

    RERM Road Train Member

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    2-6 hrs of idle per day, and yes, loaded 80k or more 50% of time.
     
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  10. Brickwall

    Brickwall Light Load Member

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    I would love to know your secret. I've got a C15 acert on a 386, and I can't get over 6 to save my #### life
     
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  11. gentleroger

    gentleroger Road Train Member

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    But it's not normal either. My 04 century used a gallon ever 40k or so.

    My 2011 glider I added 1 gallon after two weeks. Then only oil changes the next two years. Except for once they didn't get the drain plug back in properly (forgot the o ring), then I had to top off just before the oil change.

    As to fuel economy - my 2011 glider did 7.5 mpg with 8% idle time over the 2 years I had it.

    My 2012 cascadia did 7.5 with 4.5% idle.

    My 2013 cascadia evo did 7,5, with oil that looked like chocolate milk, bad injectors (8 over the course of the year), and def/dpf/scr issues.

    My 2016 evo with a dt12 has gotten 8 mpg this week. Avg load weight 38,0000, running been bay to Nashville to Sioux falls. Idled 6 hrs a night and spent 3 hours backing up (did I mention that the trainee has done all the driving?).

    So even without an app it is possible to run over 6.5 mpg.
     
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