Use 220 gear oil or 100 gear oil.

details as follows:
When the ambient temperature is between 0°C and 30°C, 150 gear oil is used when the output shaft speed is above 100 rpm, and 220 gear oil is used when the output shaft speed is below 100 rpm. When the ambient temperature is between -10 and 15°C, 68 gear oil is used when the output speed is above 100 rpm, and 100 gear oil is used when the output speed is below 100 rpm.

Automobile gear oil is used in gear transmission mechanisms such as automobile steering gears, transmissions, and drive axles. Due to the high surface pressure during gear transmission, gear oils provide lubrication, anti-wear, cooling, heat dissipation, anti-corrosion and anti-rust, washing and gear reduction of gears. Surface impact and noise play an important role.

Gear oil is mainly based on petroleum lubricating oil base oil or synthetic lubricating oil, and is an important lubricating oil prepared by adding extreme pressure anti-wear agent and oiliness agent. Used in various gear transmissions to prevent tooth surface wear, scratches, sintering, etc., to extend its service life and improve the efficiency of power transmission. The load of the hyperbolic tooth surface is as high as 2942MPa. In order to prevent the wear and abrasion of the tooth surface caused by the rupture of the oil film, an extreme pressure anti-wear agent is often added to the gear oil.