I have one of these cars too, also 3.5. I purchased with 34K and has used a quart of oil every 1000 miles since then. It has no leaks or smoke or any other signs of oil consumption. So much research, nobody knows why these engines do this, some have gone as far as contacting Chrysler just for them to say, " that's normal". But here is the diagram for the PCV:
Not our fault you put the wrong parts on the car
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