Hydraulic oil is a specialized fluid used in hydraulic systems to transmit power. It plays a crucial role in machinery, such as excavators and forklifts, by transferring force from one part of the system to another. This oil also helps to lubricate moving parts, reducing wear and tear, and preventing overheating. In addition to power transmission, hydraulic oil often contains additives that improve its performance. These additives can enhance properties like viscosity, corrosion resistance, and foam control. Proper maintenance of hydraulic oil is essential for the efficiency and longevity of hydraulic equipment.