What does SAE on engine oil mean?
1 Answers
SAE stands for the Society of Automotive Engineers, and the SAE grade represents the viscosity grade of the oil. The specific classification of automotive engine oil includes 4 types for summer use, 6 types for winter use, and 16 types for all-season use. More information about automotive engine oil is as follows: 1. The grades for summer oil are: 20W, 30W, 40W, 50W. The larger the number, the higher the viscosity and the higher the maximum applicable temperature. 2. The grades for winter oil are: 0W, 5W, 10W, 15W, 20W, 25W. The symbol 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.