Servo Gear TH 90 (LS) is an extreme-pressure gear oil of automotive nature. It is a multipurpose kind of gear lubricant which is formulated from carefully selected, highly viscous index base stocks. It is known to possess additives which impart anti-corrosion, extreme pressure, anti-oxidation and anti-rust characteristics. Having these characteristics make it a multi-purpose gear oil. It is mainly created to meet the various service demand of axles, mechanical transmissions and gear boxes of Tata Hitachi Excavators. It lubricates the hypoid differential units belonging to Tata Hitachi Excavators which operates under severe conditions along with drive axles and other mechanical transmissions where these E.P.G oils are required. It is approved by Tata Hitachi.