Hydraulic fluids are essential in the hydraulic industry, as they transmit power within hydraulic systems. These fluids are typically a blend of oil and additives designed to perform multiple functions, including lubrication, heat transfer, and rust prevention. The fluid helps in the smooth operation of machinery by transferring force in hydraulic systems, such as hydraulic presses, lifts, and steering systems in vehicles. The quality and type of hydraulic fluid used can significantly impact the efficiency, safety, and longevity of hydraulic equipment. The fluid power industry continually innovates to develop fluids with improved performance characteristics, including environmental sustainability and higher temperature stability. Regular maintenance and monitoring are crucial to ensure optimal fluid performance and system reliability.