I took my Prius in to the dealership Monday to get one of my "free" oil changes. I asked the service adviser, or what ever they call them, to put a notation on the service ticket that said "Please do not overfill". When I went out to get the car and leave, I did check the oil. The level was just fine. When I got home and was putting the service ticket in my notebook, I looked at what he had written on it. It actually said "Do not overfill. Customer will check oil in parking lot." How cool is that?