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  4. Transmission fluids

Commercial vehicle transmission fluids

Castrol's transmission fluids are designed to deliver enhanced protection to critical parts. Helping to prevent wear and supporting longer transmission life for both automatic and manual vehicles.

Forward to complete protection

Castrol's transmission fluids have been developed to help vehicles continue to perform reliably. Providing enhanced protection to all moving parts, our lubricants help support longer transmission life. You can be confident that Castrol's driveline fluids will keep your fleet productive.


Formulated to support your fleet's productivity, help reduce maintenance interruptions, and help minimise unexpected downtime.

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Trusted by leading manufacturers

2 out of 3 major vehicle manufacturers choose Castrol transmission fluid1

 

So you can trust our range of transmission fluids, Castrol TRANSMAX to protect your gears and axles and help maximise drain intervals.

Castrol TRANSMAX

Explore our range of driveline fluids to help maximise your drain interval and your profit. Longer transmission life with Castrol TRANSMAX.

Find Castrol TRANSMAX products in your country

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Commercial vehicle applications

Search for your product by commercial vehicle application. We offer lubricants, fluids and greases for a wide range of applications.
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Commercial vehicle products

Explore our range of commercial vehicle engine oils, fluids, greases, and coolants – formulated to to boost productivity and reliability.
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Product selector

Use the Castrol Product Finder to find the right engine oil for your commercial vehicle. Select your country and enter the required information.
1Based on LMCA data for top selling OEMs (total new car sales) in 2022. Used as part of OEM factory fill.