How is hydraulic fluid different from water?

Hydraulic fluid is specifically formulated for use in hydraulic systems, and one of its key characteristics is its ability to provide lubrication and maintain temperature stability. Unlike water, which can cause rust, corrosion, and is not particularly effective at low temperatures, hydraulic fluids are engineered to reduce friction between moving parts, thereby enhancing performance and longevity of the hydraulic components. Additionally, hydraulic fluids often include additives that improve their thermal properties, ensuring that the system can operate efficiently over a wide range of temperatures.

This distinction is vital because using the wrong fluid in a hydraulic system, such as plain water, could lead to failures, inefficiencies, and damage due to inadequate lubrication and poor thermal regulation.