The 2019 Honda Odyssey uses Honda DW-1 automatic transmission fluid, and a typical full transmission fluid change requires about 10 quarts (roughly 9.5 liters) to bring the system back to spec.
The exact amount depends on the service type and how much fluid remains in the system after draining. A simple pan drain and refill usually takes about 6–8 quarts, a complete service with filter replacement is around 9.5–10 quarts, and a full flush can require 12–15 quarts or more to replace most of the circulating fluid.
Service options and estimated quantities
Different service methods move different amounts of fluid through the transmission. Here are the typical ranges you might encounter.
- Full transmission service with filter replacement: about 9.5–10 quarts (roughly 9–9.5 liters).
- Pan drain and refill (no filter change): roughly 6–8 quarts (about 5.7–7.5 liters).
- Transmission flush (machine-assisted cycle): typically 12–15 quarts (about 11–14 liters), depending on the procedure and equipment.
Always verify the exact capacity with your owner's manual or a trusted technician, and use Honda DW-1 ATF as specified.
Maintenance tips and how to confirm correct levels
Many late-model Hondas do not have a traditional transmission dipstick. If your Odyssey lacks one, rely on service checks performed by a dealer or qualified mechanic, following the manufacturer's procedures to confirm proper fluid level and condition after service.
Important notes
Use only Honda DW-1 ATF, replace the transmission filter when performing a full service, and avoid mixing fluids. If you notice leaks or slipping, have the system inspected promptly.
Summary
The 2019 Honda Odyssey typically takes about 10 quarts of DW-1 ATF for a full transmission fluid change, with drainage-only scenarios around 6–8 quarts and flushing potentially reaching 12–15 quarts. Always consult the owner's manual or a dealership for precise guidance and use the recommended fluid.