What does SAE mean in engine oil?

1 Answers
DiEden
07/25/25 3:49pm
SAE in engine oil refers to the viscosity grade of the oil. The classification method for engine oil grades is: 1. AB series: gasoline and light-duty diesel engine oils; 2. C series: catalyst-compatible engine oils; 3. E series: heavy-duty diesel engine oils. The functions of engine oil are: 1. Reducing friction and high temperatures; 2. Cooling and temperature reduction; 3. Cleaning and cleansing; 4. Shock absorption and buffering; 5. Rust and corrosion prevention. Engine oil, also known as engine lubricating oil, includes: 1. Base oil: the main component of lubricating oil, determining its basic properties; 2. Additives: to compensate for and improve the shortcomings of base oil performance.
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