Shell Spirax S4 CX 10W
Shell Spirax S4 CX 10W is a high-performance transmission and hydraulic oil specifically developed for use in heavy-duty off-highway equipment. Formulated using high-quality base oils and advanced additive technology, the lubricant is designed to deliver reliable performance in transmissions, hydraulic systems and oil-immersed brake systems. The oil provides excellent protection for heavily loaded components while ensuring smooth operation and dependable equipment performance in demanding operating environments.
One of the key advantages of Shell Spirax S4 CX 10W is its excellent friction performance and material compatibility. Modern off-highway equipment often uses advanced metallic and non-metallic friction materials within powershift transmissions and wet brake systems. The formulation provides stable and consistent friction characteristics, helping minimise clutch slippage while delivering smooth and quiet brake operation. This ensures reliable transmission engagement and controlled braking performance during demanding machine operation.
Shell Spirax S4 CX 10W also provides excellent anti-wear protection for critical drivetrain and hydraulic components. The shear-stable SAE 10W formulation does not rely on viscosity index improvers or thickeners, allowing the oil to maintain stable viscosity and strong film strength under heavy mechanical stress. This helps protect heavily loaded components such as gears, bearings and hydraulic pumps from wear and surface damage, contributing to extended equipment life and improved operational reliability.
Another important benefit of Shell Spirax S4 CX 10W is its strong low-temperature performance. The formulation meets demanding low-temperature viscosity and fluidity requirements, ensuring the lubricant flows effectively during cold start conditions. Rapid oil circulation helps provide immediate lubrication to critical components, reducing the risk of wear during start-up and improving equipment efficiency in colder environments.
Shell Spirax S4 CX 10W also provides excellent oxidation stability and protection against deposit formation. The lubricant contains inhibitors that help control oxidation and suppress foaming during operation. This helps maintain oil cleanliness and protects both ferrous and non-ferrous metal components from corrosion, ensuring consistent hydraulic and transmission performance throughout the oil service life.
The lubricant is recommended for use in heavy-duty off-highway equipment manufactured by leading manufacturers including Caterpillar, Komatsu and Komatsu-Dresser. It is suitable for use in powershift transmissions, oil-immersed brake systems and hydraulic systems as well as transmissions manufactured by Eaton, Eaton Fuller, ZF, Dana and Rockwell. The product meets key industry specifications including Caterpillar TO-4 and ZF TE-ML 03C and is also suitable for applications requiring Allison C-4 type fluids. Physical characteristics include a kinematic viscosity of approximately 36 mm²/s at 40°C and 6 mm²/s at 100°C with a density of approximately 884 kg/m³ at 15°C. The oil has a flash point of approximately 200°C and a pour point of approximately –36°C, supporting reliable lubrication performance across a wide range of heavy-duty operating conditions.
