What is the reason for a lot of engine oil inside the PCV valve even though it is not broken?

[DiGeorge]

There is a lot of engine oil inside the PCV valve even though it is not broken because: engine oil vapor condenses when it meets cold air. Turbocharger issue: If the vehicle is equipped with a turbocharger, the issue lies with the turbocharger. For non-turbocharged engines, the problem is with the valve cover, which needs to be replaced. Due to prolonged imbalance between the intake pressure and the pressure inside the turbocharger bearing housing, engine oil inside the turbocharger leaks into the compressor under the pressure difference through the seals. Intake manifold: The intake manifold is the passage through which air enters the engine block and flows toward the cylinders. It mainly consists of channels designed in the cylinder head. At the very end of the intake manifold is the intake valve, which controls the air intake.