

Knowing the exact oil level is very important for new cars. The piston rings are now made of softer metal to get a few more mpgs. If you overfill oil, you will get blow by, damage the rings, and start burning oil. Toyota now has an involved process of changing oil, running the engine, then topping off the oil while the engine is hot so as to not overfill. But not even my dealer follows that official procedure Toyota put in their manual.
As Alton Brown said, “Cake is only the delivery system for frosting.”