What Causes Oil Dripping from the Exhaust?

[LaBrayden]

Oil dripping from the exhaust is caused by damage to the Positive Crankcase Ventilation (PCV) system. The solution to oil dripping from the exhaust is to replace the PCV system. To prevent excessive crankcase pressure, extend oil service life, reduce component wear and corrosion, and prevent engine oil leaks, crankcase ventilation is essential. To meet increasingly stringent emission requirements and improve fuel economy, the design of the crankcase ventilation system is also a critical part of automotive engine design. The Positive Crankcase Ventilation system can be simply understood as a gasoline recovery system. Without this system, vehicles would experience increased oil levels. The PCV system separates the mixed oil and gas that enters the crankcase, allowing the oil to return to the oil pan and the gasoline vapors to re-enter the combustion chamber for further combustion.