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What kind of fluid does a 2019 Acura MDX transfer case take?

The transfer case in a 2019 Acura MDX uses Honda/Acura ATF DW-1 automatic transmission fluid. This is the manufacturer-approved fluid for the MDX’s AWD transfer case.


Fluid specification for the MDX transfer case


To keep the all-wheel-drive system functioning properly, the transfer case requires a fluid designed for automatic transmissions, not engine oil or gear oil. Honda/Acura specifies ATF DW-1 for the MDX transfer case, aligning with its use in the vehicle’s transmission as well.


Before relying on a substitute fluid, note that using the wrong type can lead to poor engagement, overheating, or seal damage. Always verify the exact specification in the owner's manual or with an authorized dealer.


What this means in practice is clear: for the 2019 MDX transfer case, ATF DW-1 is the recommended choice, and DW-1 compatibility is part of Acura’s warranty and maintenance guidance.



  • Fluid type: Honda/Acura ATF DW-1

  • Application: Transfer case lubrication for the 2019 MDX AWD system

  • Guidance: Do not substitute other ATFs unless explicitly approved by Acura; check the owner’s manual for confirmation


In short, the correct fluid is ATF DW-1, and following this specification helps protect the transfer case and maintain smooth AWD operation.


Maintenance notes and practical guidance


For owners planning service or resealing work, here are essential considerations to ensure proper maintenance of the transfer case fluid.



  • Confirm the specification: Always reference the 2019 MDX owner’s manual or a certified Acura technician to confirm ATF DW-1 is the required fluid for your exact configuration.

  • Service interval: Follow the recommended service interval from the manual; transfer case fluid changes are less frequent than engine oil but are important for long-term reliability.

  • Replacement procedure: If performing a DIY fluid change, use the correct DW-1 fluid, ensure proper pan drainage, and replace any seals as recommended by Honda/Acura guidelines.


Professional service is advised if you are unsure about the steps or the correct fluid grade; using the right fluid helps sustain the longevity of the MDX’s AWD transfer case and overall driveline health.


Summary


The 2019 Acura MDX transfer case requires Honda/Acura ATF DW-1 automatic transmission fluid. This specification aligns with Acura’s guidance for the MDX's AWD system. Always verify the exact fluid type in the owner’s manual or with an authorized dealer, follow the recommended service intervals, and use the correct fluid to prevent drivetrain issues and preserve warranty coverage. Regular maintenance and correct fluid use are essential for reliable all-wheel-drive performance.

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Kevin Bennett

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Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.