Shell Spirax S2 A 85W-140
Shell Spirax S2 A 85W-140 is a high-quality heavy-duty axle oil developed to provide reliable lubrication and protection in demanding automotive drivetrain applications. Formulated with high-quality base oils and advanced extreme-pressure additive technology, the lubricant is designed to deliver excellent wear protection, oxidation stability and corrosion resistance in heavily loaded gear systems. The oil is engineered to support the performance and durability of axle and transmission components operating under severe load and speed conditions.
One of the key advantages of Shell Spirax S2 A 85W-140 is its strong extreme-pressure performance. The formulation includes specially selected additives that help protect gear teeth under high load conditions, particularly in hypoid gear axles where sliding contact between gear surfaces can generate significant stress. These additives form a protective film on metal surfaces that helps prevent metal-to-metal contact and reduces the risk of scuffing, pitting and excessive wear. This protection helps extend the service life of drivetrain components and maintain reliable performance under demanding operating conditions.
Shell Spirax S2 A 85W-140 also provides excellent resistance to oxidation and corrosion. Automotive drivetrain systems often operate under high temperatures and may be exposed to moisture or contaminants during operation. The lubricant’s advanced additive system helps resist oxidation and prevent rust formation on metal surfaces. This helps maintain oil stability and protect gear components from corrosion, ensuring long-term reliability and consistent lubrication performance.
Another important benefit of Shell Spirax S2 A 85W-140 is its ability to maintain a stable lubricating oil film across a wide range of operating conditions. The high-quality base oils ensure good flow characteristics at lower temperatures while maintaining sufficient viscosity at higher operating temperatures. This allows the lubricant to maintain an effective protective film between gear surfaces even under heavy loads and severe operating conditions.
Shell Spirax S2 A 85W-140 is recommended for use in a wide range of automotive drivetrain applications. It is particularly suited for automotive transmissions, differentials and hypoid axle units subjected to moderate to heavy loads. The lubricant can also be used in gear sets operating in stationary or ancillary equipment as well as in certain motorcycle gear units where the gearbox is separate from the engine. It is designed to perform effectively under a variety of operating conditions including high speed with shock loads, high speed with low torque and low speed with high torque.
The product meets the API GL-5 industry specification for axle oils. Physical characteristics include a kinematic viscosity of approximately 358 mm²/s at 40°C and 25.6 mm²/s at 100°C with a viscosity index of approximately 94. The oil has a density of approximately 908 kg/m³ at 15°C, a flash point of approximately 215°C and a pour point of approximately –15°C, supporting reliable lubrication performance across a wide range of operating conditions.
