What are the reasons for Audi cars burning engine oil?

[Joshua]

Audi cars burning engine oil may be caused by the following reasons: 1. Using engine oil with inappropriate viscosity: Audi cars are high-end German vehicles, and it is best to use fully synthetic engine oil. The viscosity of the engine oil should preferably not be lower than 30, with the minimum requirement being the use of 5W40 grade oil. Too low viscosity can also lead to oil burning. 2. Using cast iron as the material for the engine cylinder block: Cast iron engines inherently consume more oil, such as Audi's 1.8T and 2.0T engines. 3. Carbon deposits causing piston ring sticking and reduced elasticity: When piston rings stick or lose elasticity, the sealing performance of the piston decreases, allowing engine oil to easily seep into the combustion chamber, resulting in oil burning. 4. Poor cooling and heat dissipation system. 5. Blocked crankcase ventilation system. Note: If a car burns engine oil and is not repaired, it can cause the oxygen sensor to fail prematurely, increase carbon deposits in the combustion chamber, lead to unstable idling, reduced acceleration power, increased fuel consumption, and excessive exhaust emissions. It may also cause the catalytic converter to become clogged, and in severe cases, the vehicle may even be scrapped.