Servo Gear HP 90(T) is a hypoid gear oil, hypoid gear is a type of gear in which a spiral shaft roates around its axis making the the ring type gear to rotate around its central axis, this oil is manufactured by M/s. Tata Motors and M/s. Ashok Leyland.  It is mainly used in the industry on transmission gear boxes. This lubricant is manufactured from special additive system to satisfy the requirements of giving long service life. Due to its anti-wear characteristics, when the shaft collide with each other the lubricant acts as a shocker to absorb the shock created by sudden impact. It is particularly developed for the stability that it brings in the system. It is developed for lubrication in a wide variety of gears. The additives used in the T Version of gear hp 90 are slightly different that used in the normal version of gear hp 90. It provides last long work under high temperature operation.

Kinematic Viscosity cSt @ 100°C16-18
Flash point (COC), °C Min.180
Viscosity Index, Min.90