Does the 2021 Audi Still Burn Engine Oil?

1 Answers
ZaneLynn
07/29/25 10:53pm
Audi does have some models that experience engine oil burning, and of course, it's not just Audi—BMW, Mercedes-Benz, and Volkswagen also have this issue. Some German car models are prone to engine oil burning. Engine oil burning refers to the situation where engine oil enters the combustion chamber of the engine and burns along with the air-fuel mixture. Here are some additional details: Poor cylinder sealing is the main cause of oil burning: 1. Poor cylinder sealing, mainly due to excessive clearance between the piston and cylinder wall, improper installation of piston rings, or poor sealing, allows oil from the cylinder wall to enter the combustion chamber, causing oil burning. 2. Poor sealing performance of the valve seal, damage to the crankcase ventilation valve, or blockage of the crankcase exhaust port, resulting in excessive pressure in the crankcase, which causes oil to enter the cylinder along with crankcase gases and burn.
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