What is Considered Normal Engine Oil Consumption?
1 Answers
For imported foreign models, the normal range is generally 0.1-0.2g/kWh, with German models being slightly higher. The following factors affect engine oil consumption: 1. Oil viscosity. Lower viscosity oil has relatively poorer sealing performance, leading to increased oil being drawn into the combustion chamber. 2. Driving conditions. High-speed driving and frequent acceleration/deceleration will increase oil consumption. Different operating conditions result in varying oil consumption levels. 3. Poor fuel quality can easily cause carbon deposits to form in the piston ring grooves, which may eventually lead to stuck piston rings over time. 4. After a certain mileage, wear on piston rings and cylinder walls may cause the clearance to exceed limits, allowing small amounts of oil to enter the combustion chamber and result in genuine oil burning. 5. Damaged or hardened/aged valve stem seals. When assessing oil consumption, it's important to note that thinning oil makes it difficult to accurately determine the true oil level.