Shell Spirax S5 DCT X
Shell Spirax S5 DCT X is a premium synthetic technology dual clutch transmission (DCT) fluid developed to meet the demanding lubrication requirements of modern passenger vehicles equipped with wet dual clutch transmissions. Formulated with high-quality synthetic base oils and advanced additive technology, the fluid is designed to deliver smooth gear engagement, excellent wear protection and extended fluid life. Its multi-vehicle formulation allows it to be used across a wide range of vehicle manufacturers and transmission designs that require high-performance DCT fluids.
One of the key advantages of Shell Spirax S5 DCT X is its optimised friction performance for dual clutch transmission systems. Wet DCT systems rely on precise friction characteristics to ensure smooth engagement of clutch packs during gear changes. The carefully balanced friction properties of the fluid help deliver seamless gear transitions and consistent transmission response, improving overall driving comfort and vehicle performance. This helps maintain smooth speed changes while minimising clutch shudder and vibration during operation.
Shell Spirax S5 DCT X also provides excellent protection against wear and component damage. Dual clutch transmissions operate under high mechanical stress and require lubricants capable of protecting gears, bearings and clutch components under severe operating conditions. The advanced additive system forms a durable lubricating film between metal surfaces, helping to prevent wear and surface fatigue. This protection helps extend the operational life of transmission components and supports reliable drivetrain performance.
Another important benefit of Shell Spirax S5 DCT X is its outstanding thermal and oxidation stability. Transmission fluids are exposed to elevated temperatures during operation, which can lead to fluid degradation and deposit formation. The advanced synthetic formulation helps resist oxidation and maintain fluid cleanliness, preventing the formation of harmful deposits that could interfere with transmission performance. This contributes to longer oil drain capability and improved long-term reliability.
Shell Spirax S5 DCT X also delivers excellent low-temperature performance, ensuring rapid fluid circulation during cold start conditions. Improved fluidity at low temperatures helps reduce start-up wear and supports consistent transmission performance across a wide range of operating environments. In addition, the formulation helps maintain stable viscosity characteristics during high-temperature operation, ensuring consistent lubrication performance throughout the service interval.
The fluid is suitable for use in a wide range of passenger vehicles equipped with wet dual clutch transmissions.
