What Does Engine Oil Maintenance Mean?
1 Answers
Engine oil maintenance means: The engine oil needs to be replaced after the car has been driven for a certain mileage. Simply put, engine oil is a type of lubricant for the engine. Since engine components are made of metal, without lubrication, metal-to-metal friction can easily cause damage to the parts. Engine oil has six major functions for the engine: lubrication and wear reduction, cooling and temperature reduction, sealing and leak prevention, cleaning and contamination removal, corrosion and rust prevention, and cushioning and shock absorption. Below is more information about engine oil performance: 1. Lubrication. Under various conditions, the ability of engine oil to reduce friction, minimize wear, and prevent metal sintering is called the lubricating property of engine oil. The viscosity of engine oil is an important indicator for evaluating its lubricating property. 2. Low-temperature operability. The performance of engine oil that ensures easy starting and reliable oil supply in low-temperature conditions is called low-temperature operability. The low-temperature operability of engine oil includes facilitating cold starts and reducing startup wear. 3. Viscosity-temperature characteristics. The property of lubricating oil to change viscosity with temperature fluctuations is called viscosity-temperature characteristics. Good viscosity-temperature characteristics mean the oil's viscosity changes minimally with temperature. The effect of temperature on oil viscosity: as temperature rises, viscosity decreases; as temperature drops, viscosity increases. Adding viscosity index improvers to the base oil can enhance the oil's viscosity-temperature characteristics.
