What Does the Engine Oil Code Mean?
1 Answers
The meaning of the engine oil code is as follows: Taking SAE20W50 as an example, it represents the viscosity of the oil. SAE is the abbreviation for the Society of Automotive Engineers, which currently sets the viscosity grades for engine oils. 20W indicates the oil's low-temperature performance, while 50 represents its high-temperature performance. Introduction to Engine Oil: 1. Low-temperature grades are divided into six levels: 0W, 5W, 10W, 15W, 20W, and 25W. The smaller the number, the better the oil performs in low temperatures. 2. High-temperature grades are divided into five levels: 20, 30, 40, 50, and 60. The larger the number, the higher the oil's viscosity at high temperatures.