12-11-2017, 01:21 PM
My suggestion would be Bill Boys at Possum Hollow in Phoenixville. I used to take my old Cayman and 911 there for oil changes. At the time it was $25 or so and I provided the supplies (oil, filter, gasket). Not sure what changed for the 718's since going turbo, but I can't imagine it's that much more complicated. Great service and knowledge over there!