👉 The Ob fluid, also known as the oil used in hydraulic systems, is a synthetic hydrocarbon fluid engineered for optimal performance and longevity. Developed by the Oil Technology Institute (OTI), it is designed to provide superior lubrication, reduce friction, and withstand extreme temperatures and pressures. Unlike traditional mineral oils, the Ob fluid is highly viscous at low temperatures, ensuring it remains fluid in cold conditions, and has excellent thermal stability, preventing degradation at high temperatures. Its unique formulation minimizes wear and tear on mechanical components, enhancing the efficiency and lifespan of hydraulic systems across various industrial applications, from heavy machinery to aerospace.