Engine oil consumption (Audi A4 B6)

A technically sound engine consumes so little oil that between individual service changes, oil does not need to be added at all, and if oil is added, it is only in small quantities. However, this is only true if you change the oil regularly and do not overload the engine through sporty driving.

The engine consumes oil because some oil gets into the combustion chamber and burns there. A leaky engine, faulty valve stem seals, incorrectly installed piston rings, and too much clearance between the guide bushing and the valve stem increase oil consumption. However, if the oil level does not drop between the two measurements, this is not a reason to rejoice. This may mean that the engine oil is diluted with fuel and condensate, which worsens the lubricating properties of the oil. This happens especially in winter during short-distance transportation. In this case, the oil should be changed more often, without waiting for the next deadline, approximately every 3,000 km or once every four months.

When adding oil, you can mix them with each other. However, in the case of long-term use oils, you can add no more than 0.5 liters of oil of another brand to them.