Which Oil Viscosity Grade Should Be Used in Summer?
1 Answers
Engine oil is primarily differentiated by viscosity grades for winter and summer use. The viscosity grade, commonly referred to as the oil rating, determines its application. The low-temperature fluidity of the oil serves as the classification basis for winter oil, with grades such as 0W, 5W, 10W, 15W, 20W, and 25W all designated for winter use. The viscosity grade at 100 degrees Celsius is the main reference for summer oil, with grades 20, 30, 40, and 50 all classified as summer oil. Engine oil is a substance enhanced with additives in base oil, mainly containing anti-wear additives, detergents, dispersants, and multi-grade viscosity index improvers.