Citroen sega engine oil ran into the air pipe.

1. There is oil in the intake pipe of the vehicle engine. It may be that the ventilation system of the crankcase of the vehicle has failed, or there is a blockage and deformation phenomenon, which causes the oil to enter the intake pipe of the vehicle.

2. Either the oil inlet and return pipes of the vehicle turbocharger are blocked or leak oil, or the oil inlet and return pipes are deformed, resulting in the oil entering the vehicle intake pipe.

3. If the service life of the vehicle is long, the cylinder of the vehicle wears for a long time, and the piston ring of the vehicle leaks, so that the engine oil enters the intake pipe.