ServoPrime 46 LL is a premium long-life turbine oil specially formulated to deliver outstanding performance, reliability, and protection in modern steam, gas, and hydraulic turbines operating under severe conditions. Developed from high-quality, hydro-treated mineral base stocks, this advanced lubricant incorporates a carefully balanced additive package consisting of oxidation inhibitors, rust preventives, anti-wear agents, and defoamants. The result is a high-performance turbine oil that offers exceptional thermal stability, oxidation resistance, and long service life—making it ideal for use in power generation, process industries, and large-scale industrial machinery requiring superior turbine lubrication. With a kinematic viscosity of 42–50 cSt at 40°C, a viscosity index of 98, and a flash point of 215°C, ServoPrime 46 LL provides reliable lubrication across a wide range of temperatures and operating conditions. It ensures the formation of a strong and stable lubricating film that minimizes metal-to-metal contact, reducing friction and wear in bearings, gears, and other moving components. The oil’s enhanced oxidative stability prevents the formation of sludge, varnish, and acidic degradation products, thereby maintaining system cleanliness and extending oil life even under continuous high-temperature operation. ServoPrime 46 LL is specifically designed for long-drain turbine systems where extended operating intervals and uninterrupted performance are essential. Its superior anti-wear formulation provides enhanced gear and bearing protection, making it particularly effective in geared turbines and auxiliary systems. The oil’s outstanding demulsibility ensures quick separation of water and condensate, preventing corrosion and emulsion formation that could impair turbine operation. Additionally, ServoPrime 46 LL exhibits excellent air release and anti-foam characteristics, ensuring smooth circulation and stable pressure control in hydraulic and turbine systems. The product exceeds the performance requirements of all major national and international turbine oil specifications, ensuring full compatibility with turbines manufactured by leading OEMs such as ALSTOM, Siemens, BHEL, and GE. ServoPrime 46 LL’s long-life formulation minimizes maintenance requirements, reduces oil change frequency, and enhances overall turbine efficiency by maintaining optimal film strength and operating cleanliness over prolonged periods of use. Designed for modern power plants and industrial turbine installations, ServoPrime 46 LL provides a unique balance of lubricity, oxidation control, and deposit resistance, enabling trouble-free operation even under high thermal stress and heavy loads. It is also suitable for lubrication of turbo-compressors, centrifugal pumps, and other equipment requiring a stable, oxidation-resistant turbine-grade lubricant. In demanding turbine operations where uptime, efficiency, and longevity are critical, ServoPrime 46 LL stands out as a reliable solution that offers superior protection, extended service life, and reduced total operating costs. Its proven performance in both geared and non-geared turbine systems, coupled with its excellent resistance to oxidation and corrosion, makes it the preferred choice for engineers and operators seeking dependable long-term lubrication performance.

Kinematic Viscosity cSt @ 40°C42-50
Flash point (COC), °C Min.215
Viscosity Index, Min.98