What Are the Common Knowledge Points About Engine Oil Change in Car Maintenance?

[LeviAnn]

Common knowledge about engine oil change in car maintenance is as follows: 1. Oil change interval: Generally, 4S shops recommend changing the engine oil every 5,000 kilometers or 6 months. However, in actual vehicle usage, we can decide based on the type of oil used. For mineral oil, you can follow the 4S shop's recommendation of changing every 5,000 kilometers or 6 months. For semi-synthetic oil, we suggest changing every 7,500 kilometers or 8 months. As for full synthetic oil, it can be changed every 10,000 kilometers or once a year. 2. Meaning of oil viscosity grade: In the oil viscosity grade label, "W" stands for winter. The number before "W" indicates the oil's low-temperature fluidity. The smaller the number, the better the oil's low-temperature fluidity. The number after "W" represents the oil's viscosity grade at 100 degrees Celsius. The larger the number, the better the oil's lubrication and protection for the engine under high-temperature conditions.