Hydraulic oil, also known as hydraulic fluid, is a synthetic (man-made) or mineral-based, non-compressible fluid that is used to transfer power in hydraulic machinery and equipment.
The main role of engine oil is to lubricate the engine parts, which are in constant friction. It thus reduces friction which tends to increase wear & tear of engine parts. The energy is lost through combustion and the friction between mechanical parts causes the engine temperature to rise. We