How to Solve Engine Oil Burning? What Parts Are Needed?
2 Answers
Engine oil burning can be addressed in the following ways: 1. If the engine burns oil when cold but operates normally after warming up, this phenomenon is caused by aging valve stem seals, and the required replacement part is the valve stem seal; 2. If the engine burns oil when hot, and blue smoke continues to be emitted from the exhaust pipe after the car reaches normal operating temperature, this indicates poor sealing of the piston rings, and the required replacement part is the piston ring. Engine oil burning refers to the situation where engine oil enters the combustion chamber of the engine and participates in combustion along with the air-fuel mixture. This phenomenon can lead to rapid damage of the oxygen sensor, increased carbon deposits in the combustion chamber, unstable idling, lack of acceleration power, increased fuel consumption, and excessive exhaust emissions. In severe cases, insufficient engine lubrication may cause irreparable damage or even complete failure of the engine.
I fixed the oil burning issue on my old car last time. Oil burning is mostly caused by aging seals, so focus on checking the valve stem seals and piston rings. Worn-out rubber in the valve stem seals can leak oil into the cylinders, while worn piston rings fail to scrape oil cleanly off the cylinder walls. Before starting, make sure to have replacement parts ready: a valve stem seal kit and a piston ring repair set. For turbocharged models, also check if the intercooler has oil accumulation. While repairing, replace the oil catch can to avoid secondary pollution from exhaust gases. This job requires removing the cylinder head, so inexperienced friends are advised to seek professional service, with labor costs ranging from 2000 to 5000, depending on the engine model.
