Spirax S4 ATF HDX Automatic Transmission Fluid - 20L | SHL550027841

The Shell Spirax S4 ATF HDX (550027841) is a top-tier automatic transmission fluid engineered for heavy-duty automotive and commercial vehicle transmissions. Formulated with advanced synthetic base oil technology, this ATF delivers exceptional performance and protection across a wide range of automatic gear systems — even under severe driving conditions. Trusted for durability, smooth shifting, and extended drain intervals, it’s the ideal choice for fleets, service professionals, and automotive enthusiasts who demand reliable transmission performance and long fluid life.

• Advanced synthetic base formula – Offers enhanced low-temperature fluidity and high-temperature oxidation stability for reliable performance in diverse climates and operating conditions.
• Excellent wear protection – Helps reduce transmission wear and extend component life by maintaining strong lubrication even under heavy loads.
• Smooth shifting performance – Designed to deliver a consistent and responsive shift feel, improving driving comfort and transmission control.
• Extended drain intervals – High shear stability and robust formulation support longer service intervals, reducing maintenance frequency and total operating cost.
• Broad manufacturer approvals – Meets or exceeds specifications like Ford MERCON, GM Dexron III-H, MB 236.93, MAN 339 V2/Z2, ZF TE-ML 03D/04D/14B/17C, Volvo 97341 and Allison C4, making it suitable for many automatic transmissions.
• Reliable performance for cars & trucks – Ideal for automatic transmissions in passenger cars, light trucks, and commercial vehicles where these specifications are required