The 2019 Honda Odyssey takes Honda ATF DW-1 (or an equivalent that meets the DW-1 specification).
This article explains the DW-1 requirement, where to source it, and how to service the transmission to maintain performance and longevity.
Fluid specification for the 2019 Odyssey
The official specification is Honda ATF DW-1. It is a synthetic-based transmission fluid designed to meet the operating requirements of Honda automatic transmissions, including the 9-speed unit in the 2019 Odyssey. Other ATF types, such as Dexron VI or Mercon, are usually not recommended unless explicitly stated by Honda for a given model year.
Where to source DW-1 ATF
Here are common, reliable places to obtain the correct fluid, ensuring it bears the DW-1 specification on the bottle:
- Honda Genuine ATF DW-1
- OEM-equivalent ATF DW-1 sold by major auto parts chains
- Honda dealership service departments and parts counters
- Online retailers listing DW-1-compatible ATF
Always verify that the product explicitly states DW-1 compatibility on the label before purchase.
How to check or replace transmission fluid
When servicing the transmission, proper steps are essential to avoid introducing air or contaminants; if you're unsure, have a professional perform the service. The method varies slightly by car; the Odyssey's drain-and-fill intervals and exact capacity can be found in the owner's manual or by contacting a Honda service center.
- Warm up the engine to normal operating temperature and park on level ground.
- Shift through all gears to circulate the fluid, then park and apply the parking brake.
- Check the level using the dipstick (if equipped) or follow the service manual's procedure for non-dipstick transmissions.
- Top up with DW-1 until the level is correct, and inspect for leaks.
After service, drive normally to ensure smooth shifting and re-check the level if needed.
Summary
For a 2019 Honda Odyssey, the recommended transmission fluid is Honda ATF DW-1 (or an equivalent that meets the DW-1 specification). Always verify labeling, consult the owner's manual, and consider professional service for accurate level checks and changes. Using DW-1 fluid helps maintain proper shifting, performance, and transmission longevity.


