Do Volkswagen cars burn engine oil?

[MacJohnny]

Some Volkswagen models equipped with turbocharged engines do burn engine oil. The engine that experienced widespread oil burning issues in Volkswagen vehicles is the second-generation EA888 engine. There are two main reasons for Volkswagen's oil burning problem: one is a design flaw in the crankcase forced ventilation system, and the other is the presence of crosshatch patterns on the cylinder walls. When a car engine is operating, some gases enter the crankcase through the piston rings. If there's too much gas in the crankcase, the pressure increases, which can affect the downward movement of the pistons. The crankcase forced ventilation system includes a component called the oil-gas separator, which is designed to separate oil vapor. However, this component in Volkswagen engines has a design defect that prevents complete separation of oil vapor, leading to oil burning. The crosshatch patterns on the cylinder walls can store some engine oil, which helps lubricate the cylinder walls during high-speed operation. But during low-speed driving, the oil stored in these patterns gets burned off.