Last weekend I took my 2012 Silverado in for it's first oil change at 5,000 miles back to the Chevy dealer that I purchased it from. I also took the truck in for a wind noise problem coming from the driver's side door, and to have the factory keyless entry system installed. The dealer kept the truck overnight. They gave me a rental car.. so that wasn't too bad. I dropped my truck off first thing in the morning, and the next morning I got a hold of service advisor who said that they were able to duplicate the wind noise problem (which is weird; anyone who gets in my truck can hear the noise clear as day, and it's pretty loud..), but they made an adjustment and want me to try it out and see if it fixed what I was hearing it anymore. I go get the truck back and as I'm driving back from the dealer I smell a little bit of burning oil. I didn't think much of it; I thought maybe a little had dripped onto something and it would just burn off. But.. I commute around 100 miles for work every day. Over the past couple days I've been smelling a very faint smell of burning oil at random times. Haven't noticed any smoke coming from anywhere, but the smell is there every now and then. I finally get a day off yesterday to check my truck out and my oil level is wayyyy over the "Safe" crosshatch area (I'd have to guess approx 2 quarts over). That can't be too good.. Not only that, the wind noise issue is still there, and it's worse than it was before. I start looking at my driver's side door and the top of the door now doesn't line up with the rear door, there's a gap and the two panels don't sit flush. I'm not sure what to do at this point. I feel like my truck has been destroyed by the dealer. What if the burning oil smell that I've been smelling is something internal in the engine due to it being 2 quarts over?? I know the dealer will probably brush it off and say it's no big deal.. but what if it does become a big deal down the line? It's only got 5,000 miles on it now.. and I've driven it approx 500 miles at it being overfilled.. and towed a trailer one day. What kind of damage can this cause? And how can they give me my truck back after "making an adjustment" to where two body panels don't sit evenly anymore?! Has anyone had any experience with either of these issues?