What Causes Engine Oil Burning in Cars?
2 Answers
Engine oil burning in cars is caused by: 1. Faulty design in the crankcase forced ventilation system; 2. Mesh patterns on the cylinder walls. The hazards of engine oil burning include: generating large amounts of carbon deposits and gum, leading to increased fuel consumption and insufficient power in the engine, and potentially causing difficulty in starting the engine and severe engine wear. The functions of engine oil are: 1. To alleviate friction and high temperatures; 2. To reduce gas leakage and prevent external pollutants; 3. To prevent contact between water, air, acidic harmful gases, and engine parts; 4. To buffer the rising pressure at the engine cylinder ports; 5. To wash away dirt generated on the working surfaces of parts.
I find the issue of oil burning quite complex. Primarily, worn piston rings allow oil to seep into the combustion chamber and burn along with fuel; aging valve stem seals can also cause oil leakage into the cylinders. Cylinder wall wear or misfiring are common causes as well. These components become problematic when neglected over time. While driving, pay attention to exhaust emissions – blue smoke indicates oil burning. Regularly check the dipstick; a rapid drop in oil level warrants caution. I recommend seeking professional repair rather than attempting DIY fixes, as improper handling may damage the engine's core components, leading to higher repair costs. Early diagnosis using smoke tests or compression tests can prevent significant trouble. Ultimately, timely intervention prevents catalytic converter damage.
