2013 ATS 2.0T AWD
Changed mine today (1st time) at 107,856 miles. It was clean, but I'm not really surprised. It needed it, if nothing else just to get new plastic in there. The old PCV valve was quite brittle. I have changed my oil faithfully since day one, always using full synthetic 5w-30. I never let the oil percentage get below 20%. These engines and all their components LOVE clean oil.