Don't recall anyone posting this before, but I believe I have found a "hidden" menu that shows the amount of engine oil in 10ths of a quart. To get to it, use the same sequence as previously posted for the Dynomode (turn the key to the first accessory position, make sure the dash display shows the odometer, press the odometer reset button 3 times rapidly, and the display will show a digital voltage reading). Press the up arrow on the left side of the steering wheel once (pressing it twice will take you to the ESP dynamometer test as previously posted), and then turn the ignition to the "on" position (don't start the engine). On my car the display reads 7.7 quarts. Given that the oil capacity is 8.5 quarts, I assume this means I'm 0.8 quarts down? Anyone ever notice this before? How many quarts of oil does the display indicate on your cars? Note that I have a '55, not sure if the '350 has the same feature. Also, note that if you start the engine, the indicated amount of oil drops by about 1.5 quarts. I assume that this is the amount of oil being pumped through the engine, and therefore currently not in the crankcase and therefore not being measured. Guess I should go out and buy a quart of Mobil 1 so I have it when I reach 1.0 quarts down?...I assume that I will get a message at that point that the car is down a quart of oil?