oil usage

  1. J

    Lots of oil from rocker cover breather - oil restrictor missing?

    Hi all, My 4.2L 1HD-T 80 series is experiencing some serious oil usage. I've narrowed it down to the rocker cover breather outlet; temporary catch can collected 250-300mL of oil on a ~50km test run. There is some variability in the amount of oil collected. Driving at ~80km/h (about 5 PSI...
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