Now every once in a while a quart will dissapear.Like I can check it everyday and oil level the same then one day a quart gone.Same driving habits.Its like someone is draining a quart out
I change filter and add 2 gallons oil right?when I change oil. Can and where is pcv valve at? and can I be sucking oil into intake

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1999 w140, quit voting to old, and to old to fight, a god damned veteran