Viscosity is an important attribute of lubricating oil, suitable viscosity lubricating oil can play the best lubrication effect. It is superstitious about the idea that high viscosity lubricating oil is a good oil.
Viscosity refers to the flow capacity of lubricating oil, the smaller the viscosity of lubricating oil, the greater the liquidity of water. The viscosity of the same lubricating oil changes at different temperatures and pressures. High temperature reduces viscosity and high pressure increases viscosity. Viscosity Index Improver is a kind of Lubricant Additive , it can help improve the viscosity.
So, is the viscosity of lubricating oil high or low?
The quality of lubricating oil is not determined by viscosity. Different regions and seasons should choose different viscosity lubricating oil. Now it is popular to say that from the development trend of lubricating oil, low viscosity lubricating oil is the future trend.
The evaporation loss and SAPS requirements of the worldundefineds major OEM brands are more stringent, and the fuel economy of the low viscosity lubricating oil is very obvious, which makes the major OEM gradually turn to the low viscosity lubricating oil. Ultra-low viscosity SAE 0W20, SAE 0W16 and SAE 0W8 products have been launched in Japan. And the initial loading of OEM in China is also turning to SAE XW20.
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