AW-32 vs. AW-46: Choosing the Right Hydraulic Oil Viscosity
The choice of the right hydraulic fluid is essential to the longevity and efficiency of your machine. One of the more commonly used types you\'ll come across is the AW-32 and the AW-46 hydraulic oil. The main distinction between the two is the viscosity, which is what will determine their optimal operating environment and the best use for them. Understanding the Grades: Viscosity is Key Its \"AW\" in the name refers to Anti-Wear, which means that both oils have additives that protect the pumps and other hydraulic components from wear and tear. The numbers 32 and 46 32 and 46 are referring to an oil\'s ISO Viscosity Grade (VG). It is a measurement of the oil\'s kinematic viscosity as measured by centistokes (cSt) at a standard temperature of around 40C (104°F).