Automatic transmission fluids
Explore our range of automatic transmission fluids – designed to help provide maximum protection and prolong the component life of commercial vehicles.
Powering performance in your transmission
Automatic transmissions are driving progress in today's commercial transport industry – delivering improved efficiency, enhanced comfort, and vehicle control on both urban and long-haul routes. To help support performance, these sophisticated systems require advanced lubrication. Castrol has developed a range of high-performance automatic transmission fluids – engineered to help boost performance, improve efficiency, and protect critical components under pressure.
Our Castrol TRANSMAX range features advanced synthetic and mineral formulations – built to resist wear, reduce maintenance needs, and help extend transmission life. Keeping commercial vehicles on the road and performing efficiently.
Designed to protect your transmission
Unlike manual transmissions, automatic transmissions rely on complete synergy between hydraulic pressure, precise friction, and intricate gearing – working to deliver seamless power transfer. Our range of Automatic Transmission Fluids (ATF), including Castrol TRANSMAX, are engineered with our advanced Smooth Drive Technology™ – delivering enhanced performance and protection in the following areas:
Efficient power transfer
Castrol ATF’s serve as the essential hydraulic medium, transmitting power from the engine to internal transmission components, helping to enable smooth and reliable gear shifts.
Superior wear protection & lubrication
A robust fluid film provides comprehensive lubrication to critical components – gears, bearings, and clutches – significantly reducing friction, wear, and the risk of failure under heavy loads or extended operation.
Thermal stability & cooling
Formulated to manage extreme heat, Castrol ATF’s resist oxidation and thermal breakdown, helping dissipate heat, prevent overheating, and extend both fluid and component life.
Friction modification for smooth shifting
Precision-engineered friction modifiers ensure consistent clutch engagement, prevent slip, and enable smooth, responsive gear changes – maintaining driver comfort and vehicle performance over time.
Improved fuel efficiency
By minimising internal drag and optimising friction characteristics, our fluids support a more efficient operation – helping contribute to fuel savings across your fleet.
Extended drain intervals
Built to meet and exceed OEM specifications, Castrol ATF's are formulated to reduce maintenance frequency, lower total cost of ownership, and keep vehicles on the road for longer.
Cleaning & system protection
Our advanced detergency helps prevent the buildup of sludge and varnish while protecting against corrosion – ensuring long-term cleanliness and transmission reliability.
Castrol TRANSMAX Automatic Fluids
Invest in Castrol Automatic Transmission Fluids to ensure your commercial fleet operates at its peak efficiency, reliability, and profitability – mile after mile.
Castrol TRANSMAX offers a comprehensive range of fluids, which may vary by country. Discover the products available in your region - and how to buy them.
