Once again, I received excellent service. I expressed my Acadia concerns to Johnny Salas per phone call a couple of days before my appointment. My concerns were with my shifting gears, some power hesitation on road, and time for oil change. Johnny addressed all my concerns before and after service. He recommended I purchase the engine and oil additives for smoother driving. I might have purchased less than excellent gas on a road trip. Acadia is running better, oil change done and shifter might have been not in correct mode when trying to shift. Passenger might have kicked shifter.