What does SAE mean for motor oil?
1 Answers
SAE stands for the Society of Automotive Engineers, and the SAE grade represents the viscosity grade of the oil. Motor oils are specifically classified into 4 types for summer use, 6 types for winter use, and 16 types for all-season use. More information about motor oil is as follows: 1. The summer oil grades are: 20W, 30W, 40W, 50W. The larger the number, the higher the viscosity and the higher the maximum applicable temperature. 2. The winter oil grades are: 0W, 5W, 10W, 15W, 20W, 25W. The letter W stands for Winter, and the smaller the number before W, the lower the low-temperature viscosity, the better the low-temperature fluidity, and the lower the minimum applicable temperature.