Kinematic viscosity is an indicator of the fluidity of oil products. The larger the value, the higher the viscosity. The smaller the value, the lower the viscosity. This value will vary with temperature, the higher the temperature, the smaller the value and the lower the viscosity. Conversely, the lower the temperature, the larger the value and the higher the viscosity.
What does the viscosity index mean? In fact, it represents the degree of oil change with temperature. The higher the viscosity index, the less the oil viscosity is affected by temperature, the less sensitive the viscosity is to temperature, and the oil can maintain a stable viscosity.
The viscosity index characterizes the viscosity-temperature characteristics of lubricating oil. The higher the viscosity index, the better the viscosity-temperature characteristics of the oil, and the better the surface oil quality to a certain extent. It is an important control index in the production process of lubricating oil manufacturers.