For about the past week I've occasionally noticed the smell of burning oil, or maybe just some burning fluid in my 2010 300C (It's only noticeable at idle, red lights, parking lots, etc.). Today the smell was a lot more noticeable and when I got in the car it said oil change required. I just bought the car and the oil was changed by the delaer before I picked it up and I've since put about 2500 miles on the car, it shouldn't be due for another 3500 miles. Is it possible I'm getting this now because the car is detecting low oil or that it is losing oil? I checked the dipstick and it is about 1/8" above the minimum safe line (but the oil was still kind of warm), I also pulled the PCV valve out and gave it a quick inspection visually it looks fine and when I shook it it moved freely and didn't get stuck. I looked around the engine bay with a flashlight and didn't notice and seeps or leaks, I then ran my finger around the inside of the tailpipes (really bad idea after a 30 minute drive) and didn't notice any oil residue on them. Is this something I should be concerned about? Are there any other things I should check?