What Are the Solutions for Engine Oil Burning?
2 Answers
Engine oil burning solutions primarily involve engine repairs, cleaning carbon deposits inside the engine, and replacing damaged components, such as removing the engine cover to replace valve stem seals. If the situation is more severe, a major engine overhaul may be necessary. Therefore, timely action should be taken when oil burning occurs. The causes of engine oil burning are as follows: 1. Poor valve sealing: Valves prevent oil from leaking into the combustion chamber, but over time, wear and aging can lead to poor sealing, allowing oil to enter the combustion chamber more easily. 2. Increased piston clearance: Prolonged operation leads to carbon buildup and wear in the piston area. Over time, the piston clearance increases, making it easier for oil to enter the combustion chamber. This is why vehicles with long-term use often require higher-viscosity oil. 3. Low oil viscosity: Using oil with excessively low viscosity can also cause oil burning. When the oil viscosity is too low, it flows more easily and can seep into the cylinder, participating in combustion. 4. Excessive oil volume: High oil pressure can force some oil into the cylinder, resulting in oil burning.
Last time I dealt with the oil burning issue on my old German car, I took quite a few detours. Now I realize it's important to first identify the situation. If there's blue smoke from the exhaust pipe, it's most likely due to aging valve stem seals or worn piston rings. You can start by using a borescope to check if there's any cylinder wall scoring. If there's no scoring, replacing a set of improved seals can save you the cost of an overhaul. If the oil consumption exceeds half a liter per thousand kilometers, you'll need to check the PCV valve and turbocharger seals. By the way, developing a habit of warming up the car is crucial. I later made it a rule to wait until the RPM stabilizes before moving off, and the oil consumption noticeably decreased. Using full synthetic oil regularly, especially the kind with good cleaning performance, can delay carbon buildup, which is particularly effective for turbocharged cars.
