I recently had my 2014 CX5 at the dealership for fresh trans fluid and an engine oil change (140,000 mi). The car was in the shop overnight and I had a loaner car. Coincidentally during this 2-day time period my cell phone crapped out and I bought a new one. When I turned it on, I noticed like 3 or 4 messages from the service manager trying to get a hold of me regarding my car. Turns out my car had a leaky valve gasket and he wanted to know if I wanted them to do the service while the car was in the shop. Initially I was concerned, but didn't recall smelling any burning oil coming off the exhaust manifold. I told him "no thanks" because I was on my way to pickup the car and secondly because he wanted over $200 to do it. After getting my car, I pulled the engine cover and ran my fingers along the backside of the valve gasket near the pcv where he indicated the leak was located. I FOUND NOTHING! There was no leak. SOB tried to scam me. I wonder how many valve gaskets get replaced when not needed? I bet various dealerships have tons of replacements, while others not so much. Just wanted to through that out there.