What is the normal value of engine oil consumption?
3 Answers
According to the Chinese national standard GB3743-84, the ratio of engine oil to fuel consumption should be less than 1%. Based on this calculation, for a car with an engine displacement of 1.6-2.0 liters and a fuel consumption of 10 liters per 100 kilometers, the engine oil consumption should be less than 1 liter per 1,000 kilometers. Factors affecting engine oil consumption include: 1. Viscosity of the engine oil: The lower the viscosity of the engine oil, the relatively worse the sealing effect, and the amount sucked into the combustion chamber will increase. 2. Driving conditions of the vehicle: High-speed driving and frequent acceleration and deceleration will increase engine oil consumption. Different working conditions result in different amounts of engine oil consumption. During the break-in period of the engine, the oil consumption is relatively high. Therefore, the engine oil consumption is generally not evaluated during the break-in period. 3. Poor fuel quality: It is easy to form carbon deposits in the piston ring groove, which will cause the piston ring to stick for a long time, and the oil ring will lose its oil scraping effect, causing the engine oil to enter the combustion chamber from the gap between the piston and the cylinder wall, forming real oil burning. After the engine has been used for a certain number of kilometers, the piston rings and cylinder walls wear out, causing the matching gap to exceed the limit, and a small part of the engine oil will also enter the combustion chamber, forming real oil burning. The valve oil seal is damaged or hardened and aged.
I've been driving my Nissan for a few years, and I feel that the normal oil consumption range is about 0.3 to 1.0 liters per 1,000 kilometers. It might be a bit more during high-speed driving, but generally, I can go a few thousand kilometers without worrying about adding oil. It's important to regularly check the oil dipstick to monitor the color and level. If you find yourself frequently needing to add oil, it could indicate a problem. Remember, new cars usually have less oil consumption, while older engines or those with turbochargers might consume slightly more. It's recommended to have the oil level checked at the service center during each maintenance visit.
Based on repair experience, the normal oil consumption range is typically between 0.3 to 1.0 liters per 1,000 kilometers driven. This varies by vehicle type - family SUVs may consume around 0.5 liters, while older or performance vehicles may approach 1.0 liters. Consumption exceeding this range could indicate seal wear or engine design issues, requiring multimeter checks for leaks. For routine maintenance, I recommend owners check the dipstick monthly to ensure oil levels remain between the markers, preventing sudden failures that could compromise driving safety.
