上饒廣信德興市美孚渦輪機油-傳動油直營部The main difference between 46 and 68 anti-wear hydraulic oils lies in their viscosity and flash point. 46 anti-wear oil has a lower viscosity, typically at 45.88 cSt, while 68 anti-wear hydraulic oil has a higher viscosity, at 68 c. This means that 46 hydraulic oil is thinner and has better fluidity, making it suitable for use in low-temperature environments; while 68 hydraulic oil is thicker suitable for use in high-temperature environments. Additionally, the flash point range for 46 hydraulic oil is between 240°C and 40°C, the flash point for 68 hydraulic oil is 204°C