Does the Audi S4 burn engine oil?

[DeElliott]

The Audi S4 engine does not burn engine oil. Reasons for the Audi S4 engine burning oil: The Audi S4 engine burns oil because it uses unqualified engine oil. As the engine runs for a long time, the water vapor generated by high-temperature oxidation of the oil is sucked into the combustion chamber through the crankcase ventilation valve and burned. Using engine oil with viscosity that does not meet the standards will cause oil burning. Functions of vehicle engine oil: Engine oil lubricates the pistons, piston rings, and cylinders. When the engine pistons are working, there is a layer of oil film on the inner wall of the cylinder. During the combustion of the air-fuel mixture, part of the oil film is burned off by the high-temperature combustion gases.