How to Deal with Engine Oil Spraying from the Exhaust Pipe of a Sedan?

[MarleyLynn]

To address engine oil spraying from the exhaust pipe of a sedan, you can replace the crankcase ventilation valve. Below are the reasons for engine oil spraying from the exhaust pipe: Blow-by Gases: One reason is a damaged crankcase ventilation valve, which loses its sealing function and leaks oil. Excessive Exhaust Gases: The piston rings lose their sealing effectiveness, allowing high-pressure gases from the cylinders to leak into the crankcase ventilation box. This increases the pressure in the crankcase ventilation box, forcing the engine oil to spray out through the exhaust pipe. Overfilled Engine Oil: If too much engine oil is added, it can obstruct airflow in the crankcase ventilation box, forcing the oil to be expelled through the exhaust pipe.