Diesel or no Diesel That is the Question

Discussion in 'General Discussions' started by OLD N IN THE WAY, May 22, 2020.

  1. Diesel D

    Diesel D Junior Member

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    Rousch PSD Interceptor--

    "I always suction drain the HPOP
    which hardly anyone does. There are 3 quarts of dirty oil in the HPOP/HEUI system that
    blacken the fresh oil change if this isn't done."

    I also suction the HPOP in my 7.3, but can only get out about 1 1/2 qts....how do you get 3 qts out?
     
  2. Roush PSD Interceptor

    Roush PSD Interceptor Straight Piped Diesel Staff Member

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    @Diesel D

    Welcome to FFS.

    Refill the HPOP after the first suction and tighten cap.

    Start engine with crankcase full of fresh oil and run 1-2 minutes.
    Re-suction the HPOP and refill, cap off and repeat run cycle 1 more time.
    Suction and refill, this is the final fill.

    This cycles the rest of the 2 quarts of black oil cycled through the
    HEUI injector passages. Now when you finish, the 2 - 2 1/4 quarts of black oil
    won't contaminate your fresh oil change.

    I keep the HPOP cycle change oil for my pump oil cans, general lube projects.
     

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