👉 Engineers' fluid, often referred to as hydraulic fluid, is a specialized lubricant used in mechanical systems to transmit power and reduce friction between moving parts. It's typically a viscous liquid or semi-liquid substance, often containing additives to enhance its performance characteristics such as thermal stability, wear resistance, and anti-corrosive properties. Hydraulic fluid circulates through closed-loop systems, allowing for precise control over machinery movement and force application, making it indispensable in applications like brakes, steering systems, hydraulic lifts, and presses. Its ability to maintain consistent performance under varying temperatures and pressures ensures efficient and reliable operation of complex mechanical systems.