In use, motor oil transfers heat through convection as it flows through the engine by means of air flow over the surface of the oil pan, an oil cooler and through the buildup of oil gases evacuated by the Positive Crankcase Ventilation (PCV) system.
Motor oil transfers heat through convection. This is in use. It flows through the engine by means of air flow over the surface of the oil pan and through the buildup of oil gases. These oil gases are evacuated by the Positive Crankcase Ventilation (PCV) system. The oil pan is an oil cooler.