1. VISCOSITY: for a typical hydraulic transmission oil, the operating temperature ranges from-25 °C to 170 °C, which requires a high viscosity index and a low freezing point. The viscosity index is above 170 and the pour point is-40 °C, the synthetic oil is 190 °C AND-50 °C. 2. Thermal oxidation stability: The temperature of hydraulic transmission oil varies with the driving conditions. Oil temperature rise oxidation sludge, paint film and so on will make the hydraulic system work abnormal, lubrication performance deterioration, metal corrosion. 3. Shear stability: When a hydraulic transmission oil transmits power in a Torque converter, it is subjected to a strong shear force, which breaks macromolecule such as a viscosity index improver in the oil, reducing the viscosity of the oil and lowering its pressure, which caused the clutch to slip. 4, anti-foam performance: In the hydraulic transmission oil foam mixed, will cause the oil pressure drop, resulting in clutch slip, sintering and other accidents. 5. Friction characteristics: the automatic transmission fluid requires matching static friction Coefficient and dynamic friction coefficient to meet the different requirements of the friction coefficient when the clutch shift.
temperature of hydraulic transmission oil varies with the driving conditions. Oil temperature rise oxidation sludge, paint film and so on will make the hydraulic system work abnormal, lubrication performance deterioration, metal corrosion. 3. Shear stability: When a hydraulic transmission oil transmits power in a Torque converter, it is subjected to a strong shear force, which breaks macromolecule such as a viscosity index improver in the oil, reducing the viscosity of the oil and lowering its pressure, which caused the clutch to slip. 4, anti-foam performance: In the hydraulic transmission oil foam mixed, will cause the oil pressure drop, resulting in clutch slip, sintering and other accidents. 5. Friction characteristics: the automatic transmission fluid requires matching static friction Coefficient and dynamic friction coefficient to meet the different requirements of the friction coefficient when the clutch shift.
