What does the oil label mean?
1 Answers
Oil standards typically indicate viscosity and quality. The oil label refers to the viscosity of the lubricant, often represented by brands such as SAE. SAE is the abbreviation for the Society of Automotive Engineers. Taking 10W-40 as an example, "W" stands for winter, the number 10 indicates that the oil is suitable for a minimum external temperature of -25°C, and the number 40 represents its ability to withstand high temperatures up to 40°C. For instance: SAE 5W-40, where "W" stands for winter, and the number before "W" represents the fluid viscosity under low-temperature conditions. The smaller this value, the better the oil's low-temperature fluidity and protective capability. The number after "W" indicates the oil's viscosity at 100°C; the higher the number, the greater the viscosity.