Just had to replace a weepy valve cover gasket on the 165k 3.8 Chrysler minivan we bought new in ‘08. I was eager to see what it looked like inside as it’s had PYB 5W20 or 5W30 every 5k since new (one OC early in its life was with M1) along with a P1 filter. At the current mileage it gets one extra quart between changes and is probably a half quart shy of full as 5k rolls around. The engine sounds like new and has no oil leaks apart from the now-changed VC gasket. I was pretty impressed with the internals.