What Do Oil Parameters Mean?
2 Answers
Oil parameters refer to the temperature performance of engine oil, also known as engine lubricating oil. Its functions include: 1. Lubrication and friction reduction; 2. Assisting in cooling and temperature reduction; 3. Sealing and leak prevention; 4. Rust and corrosion prevention; 5. Shock absorption and buffering. Engine oil consists of base oil and additives. Base oil is the main component of lubricating oil, determining its fundamental properties, while additives compensate for and improve the shortcomings of base oil performance. It can be categorized into diesel engine oil and gasoline engine oil. Engine oil is classified by viscosity index into: 1. Low viscosity index; 2. Medium viscosity index; 3. High viscosity index; 4. Very high viscosity index; 5. Ultra-high viscosity index.
Oil parameters are the specification indicators of engine oil, which I believe are directly related to the vehicle's power and lifespan. There are several key aspects to consider: First is the viscosity grade, such as the numbers and letters in 5W-30. The 'W' stands for winter, and the numbers before and after indicate fluidity at low and high temperatures. 5W means the oil flows easily at low temperatures, while 30 indicates it's thicker at high temperatures, protecting the engine from wear. The API grade, like SN, represents additive and cleaning capabilities, which help reduce carbon deposits. The base oil type is also important, with full synthetic oils being more durable and heat-resistant than mineral oils. Choosing oil according to the vehicle's manual can prevent increased fuel consumption or engine overheating. I always advise new car owners to check the manual before buying oil. Incorrect parameters can accelerate part aging and increase repair costs, so always pay attention to the parameter labels during regular oil changes.
