Servo Gear SM 90 is a high-quality moderate-duty automotive gear oil specially formulated from refined lubricating base stocks blended with advanced performance additives to deliver superior protection, film strength, and operational reliability. Designed to ensure long-lasting lubrication and excellent oxidation stability, this oil provides smooth gear operation and consistent performance across a variety of industrial and automotive applications that do not require extreme-pressure gear oils. Servo Gear SM 90 ensures optimum lubrication in systems where thermal stability, cleanliness, and anti-wear performance are vital to maintaining equipment life and efficiency. With a kinematic viscosity range of 15–18 cSt at 100°C and a flash point of 190°C, Servo Gear SM 90 maintains a strong lubricating film even under high operating temperatures, ensuring superior load-carrying capacity and wear resistance. Its viscosity index of 85 offers reliable protection over a wide temperature range, minimizing gear noise, reducing frictional losses, and ensuring smooth gear transitions. The lubricant’s excellent resistance to oxidation prevents oil thickening and sludge formation, thus promoting extended oil life and reducing maintenance requirements. Servo Gear SM 90 is formulated to provide effective lubrication for worm gear axles, manual automotive transmissions, and final drives of vehicles that do not demand extreme-pressure (EP) gear oils. It also performs exceptionally well in industrial gearboxes, flexible couplings, and bronze gear units where EP additives could cause corrosion. Its superior film strength ensures reliable operation in spiral bevel and double reduction rear axles, as well as in spur, helical, and herringbone gear systems under moderate load and speed conditions. The oil’s high oxidation stability and low foaming tendency contribute to longer oil drain intervals and improved system reliability. Servo Gear SM 90 provides exceptional rust and corrosion protection, guarding ferrous and non-ferrous components from wear and pitting. Its balanced formulation minimizes deposit formation, ensuring that gear surfaces remain clean and friction-free even during prolonged service intervals. This gear oil conforms to API Service Classification GL-1 and complies with IS:1277-1987 specifications, ensuring dependable performance in automotive and industrial applications. Servo Gear SM 90’s anti-foaming and anti-rust properties enhance operational reliability in both stationary and mobile equipment, making it the preferred choice for workshops, transport fleets, and manufacturing plants that require a cost-effective yet durable moderate-duty gear lubricant. In essence, Servo Gear SM 90 offers a perfect balance of oxidation stability, wear resistance, and film strength, ensuring smooth power transmission and long-lasting protection of gear components. It is particularly suited for older automotive gear systems, light-duty trucks, and industrial machinery operating under controlled temperature and load conditions. With its proven formulation and consistent quality, Servo Gear SM 90 delivers reliable service, extended equipment life, and low maintenance costs for a wide range of lubrication needs.

  • meets API Service GL 1,IS :1277-1987 specifications.
Kinematic Viscosity cSt @ 100°C15-18
Flash point (COC), °C Min.190
Viscosity Index, Min.85
Pour Point, °C Max. -9