Shell Spirax S3 AX 80W-90
Shell Spirax S3 AX 80W-90 is a high-performance axle and gear oil developed to provide reliable lubrication and protection in automotive and off-road drivetrain applications. Formulated with high-quality base oils and advanced additive technology, the lubricant delivers excellent wear protection, oxidation resistance and corrosion control for gear and axle systems operating under moderate to heavy loads. The oil is designed to meet the performance requirements of API GL-5 applications where an SAE 80W-90 viscosity grade is specified.
One of the key advantages of Shell Spirax S3 AX 80W-90 is its ability to provide outstanding protection against gear wear and surface damage. The advanced extreme-pressure additive system forms a durable lubricating film between metal surfaces, helping to prevent metal-to-metal contact in heavily loaded gear systems. This protection helps reduce the risk of scuffing, pitting and gear scoring in hypoid gear sets commonly used in automotive differentials. By protecting gear surfaces from damage, the lubricant helps extend component life and maintain reliable drivetrain performance.
Shell Spirax S3 AX 80W-90 also provides strong resistance to oxidation and thermal degradation. Drivetrain components can operate under high temperatures and mechanical stress which may accelerate lubricant breakdown over time. The formulation’s oxidation-resistant additive system helps maintain oil stability during extended operating periods, reducing the formation of deposits and maintaining consistent lubrication performance throughout the oil service life.
Another important benefit of Shell Spirax S3 AX 80W-90 is its versatility across a wide range of vehicle and equipment applications. The lubricant is suitable for both on-road and off-road vehicles including passenger cars, motorcycles, commercial vehicles and construction or agricultural equipment. It can be used in automotive gearboxes, differentials and hypoid gear sets requiring API GL-5 performance, as well as certain ancillary gear systems used in industrial or mobile equipment.
Shell Spirax S3 AX 80W-90 is recommended for use in automotive axle drives, final drives and differentials where a GL-5 gear oil is specified. It is suitable for moderate to heavily loaded drivetrain applications and can be used across a range of equipment types including light-duty vehicles, heavy-duty trucks and off-road machinery. The lubricant may also be used in certain industrial gear systems where a high-performance GL-5 gear oil is required.
Physical characteristics include a kinematic viscosity of approximately 139 mm²/s at 40°C and 14.5 mm²/s at 100°C with a viscosity index of approximately 103. The oil has a density of approximately 899 kg/m³ at 15°C, a flash point of approximately 210°C and a pour point of approximately –30°C. These properties support reliable lubrication performance across a wide range of operating temperatures and drivetrain conditions.
