I have had a strange smell when the car gets hot sitting in traffic. It was very faint but noticeable. I looked under the hood tonight and there is a small amount of what looks like oil leaking out of a tube at the front of the engine. I think the tube comes out the turbo, but not sure. It turns into a braided mesh hose and then disappears down below. Anybody know what this is. In 3000 miles, it looks like maybe a teaspoon has leaked out. I'll be taking it for an oil change at the dealer soon and will have it checked out but any input so I don't go in blind would be appreciated.