Detroit 60 12.7 oil pressure

Discussion in 'Ask An Owner Operator' started by thecubantrucker, Jun 25, 2019.

  1. thecubantrucker

    thecubantrucker Bobtail Member

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    Hi guys my friend has a Detroit 60 12.7 his oil pressure at idle is 20psi and down the road with the trailer not yet with a load is 50 psi going down thr road his Oil pressure, coolant and rpms gauges sometimes work and sometimes do not but when they are indeed working the oil pressure shows that is it really low for that engine the motor runs good it sounds good as well I no black or white smoke from exhaust any ideas
     
  2. Spyro2112

    Spyro2112 Light Load Member

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  3. thecubantrucker

    thecubantrucker Bobtail Member

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    2002 freightliner century
     
  4. Intothesunset

    Intothesunset Road Train Member

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    That oil pressure is normal with a high mile engine.
    When engine is fresh it's about 70 psi running on road.
    When oil is 40 psi driving engine is getting tired. When you start eating one gallon oil every 500 miles it's time for an inframe.
    Do not idle while parked less than 900 rpm.
    Do not use Lucas. If you want thicker oil put one gallon gear lube 80/90 in with oil change.
     
  5. thecubantrucker

    thecubantrucker Bobtail Member

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    I used Lucas already but on the next oil change I will add gear oil instead
     
  6. swaan

    swaan Road Train Member

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    For a series 60 that's not low. Its perfectly normal.

    Now if that was a cat it would be a bit low.
     
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