👉 The compensation fluid, often referred to as hydraulic fluid in broader contexts but specifically in mechanical and hydraulic systems, is a lubricating and heat-transfer fluid used to reduce friction and wear between moving parts in machinery. It also serves as a coolant, helping to dissipate heat generated during operation and maintaining optimal operating temperatures. Typically, it has a high viscosity to ensure effective lubrication under pressure but is designed to flow easily when needed, providing a balance between fluidity and performance. This fluid is crucial for the efficient and reliable operation of various mechanical systems, including engines, hydraulic pumps, and brakes.