Why does gear oil require good demulsibility?
Gear transmission is one of the most widely used power transmission and steering methods in the machinery industry. Therefore, the chance of gear oil in contact with water is inevitable. The gear oil
Why the tendency of low viscosity of internal combustion engine oil?
There are two ways to save energy for internal combustion engine oil: one is to reduce the viscosity; the other is to add the friction modifier, while the effect of reducing the viscosity is remarkabl