The dealers are full of it, and they try to nickel and dime you every time you step in for service. My wife's Nissan Armada had to go in for a recall, so I figured I get the oil changed while there. I provided my own oil (AmsOil) and they do the work. So, after they did the work, the service advisor handed me the printed-out sheet with "all" the things they looked at. I walk over to the vehicle, and I noticed a small puddle under the vehicle, I look, and the oil drain plug was loose, so loose that I could turn it with my fingers. I called the service advisor and pointed that out to him. I open the hood to check the oil and noticed that the battery terminals were full of corrosion. Something they claimed they looked at as part of their inspection. I pointed that out to him as well. After they took my vehicle back to tighten the drain plug, the manager came out, handed my keys back and told me my service was free. Not happy with their work, I ripped them a new a$$hole on the service review they send out. I don't go to that dealer anymore, especially after the fiasco with my Titan.
I hope my Chevy Z71 2500 HD will last me a while.