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What is the Engine Oil Grade Chart?

1 Answers

MaverickLynn

07/30/25 2:45am

Currently, gasoline engine oils are classified into grades SA, SB, SC, SD, SE, SF, SG, SH, SJ, SL, SM, SN, and SP; diesel engine oils are classified into grades CA, CB, CC, CD, CD-II, CE, CF-II, CF-4, CG-4, CH-4, and CI-4. Below is more related information: Classification based on SAE viscosity grades: 1. Engine oils are classified according to SAE viscosity grades, with 6 types for winter, 5 types for summer, and 16 types for all-season use. 2. There are 6 types of winter engine oils: 0W, 5W, 10W, 15W, 20W, and 25W. The 'W' stands for Winter, and the smaller the number before it, the greater the oil's fluidity and the lower the applicable temperature. 3. There are 5 types of summer engine oils: 20, 30, 40, 50, and 60. The larger the number, the higher the oil's viscosity and the stronger its high-temperature protection performance, making it suitable for higher temperature environments. 4. There are 16 types of all-season engine oils: 5W20, 5W30, 5W40, 5W50, 10W20, 10W30, 10W40, 10W50, 15W30, 15W40, 15W50, 20W20, 20W30, 20W40, and 20W50.

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