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C12 low oil pressure

Discussion in 'Trucks [ Eighteen Wheelers ]' started by wwp2343, Dec 15, 2010.

Page 2 of 2
  1. Feb 22, 2014 #11
    Canary379

    Canary379 Light Load Member

    73
    3
    Apr 13, 2012
    Illinois
    0
    WWP2343.... Did u ever figure out what the issue was?
     
    Canary379, Feb 22, 2014
    Canary379, Feb 22, 2014
    #11
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  3. Mar 8, 2014 #12
    wwp2343

    wwp2343 Light Load Member

    84
    7
    Jun 14, 2010
    PA
    0
    Nothing really other than the gauge being 2psi off, I sold the truck 1 1/2yrs ago and still talk to the guy says it's running fine with about 300k on the overhaul. He had it turned up a little and put a fuel temp sensor on it to go along with the 12.7 turbo I put on it and is very pleased with the power and mpg.
     
    wwp2343, Mar 8, 2014
    wwp2343, Mar 8, 2014
    #12
  4. Mar 8, 2014 #13
    Canary379

    Canary379 Light Load Member

    73
    3
    Apr 13, 2012
    Illinois
    0
    I still feel like mine might be something else. It has never gone below 20psi of oil pressure at normal operating temp. Granted the issue started once I switched over to full synthetic (Rotella T6). Yesterday at idle it was only at 14 psi. And at now point did it get over 40 under load. Wonder if Mr Haney has any input?

    thx
     
    Canary379, Mar 8, 2014
    Canary379, Mar 8, 2014
    #13
  5. Mar 8, 2014 #14
    dude6710

    dude6710 Road Train Member

    2,162
    622
    Mar 26, 2010
    MN
    0
    Mine sees 20 at idle and 35-40 going down the road. 670k miles and 20000 hours. You could change the oil filter and see if it changes.
     
    dude6710, Mar 8, 2014
    dude6710, Mar 8, 2014
    #14
  7. Mar 8, 2014 #15
    wwp2343

    wwp2343 Light Load Member

    84
    7
    Jun 14, 2010
    PA
    0
    If your not using a cat filter I would try that first, don't know if it would help but worth a shot.
     
    wwp2343, Mar 8, 2014
    wwp2343, Mar 8, 2014
    #15
  8. Mar 8, 2014 #16
    heavyhaulerss

    heavyhaulerss Road Train Member

    3,723
    2,040
    Dec 23, 2009
    AL/TN BORDER
    0
    I tried full synthetic one time, only cause it was on sale real cheap. my oil pressure drops 10 lbs. could not wait til the 10,000 miles were up so I could change it out. was in summer. just scared me.
     
    heavyhaulerss, Mar 8, 2014
    heavyhaulerss, Mar 8, 2014
    #16
  9. Mar 18, 2014 #17
    Canary379

    Canary379 Light Load Member

    73
    3
    Apr 13, 2012
    Illinois
    0
    Heavy haulers... That is basically what mine did drop close 7 psi. I only use Cat filters and change the. At every oil change every 10,000. Now that I am On synthetic I want to go back to regular 15w40! Heavy haulers, did your pressure go back to 20 at idle when u switched back to regular oil
     
    Canary379, Mar 18, 2014
    Canary379, Mar 18, 2014
    #17
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