Honda Genuine ATF DW-1 Automatic Transmission Fluid, 4 Quarts

This is genuine Honda ATF DW-1, part number 08200-9008, sold here as a four-bottle case of one U.S. quart each. DW-1 is the fluid Honda moved to across its automatic transmission lineup, and it supersedes the older Honda ATF-Z1 (ATF-Z1 is discontinued, and DW-1 is the factory replacement for those applications). If your dipstick or owner manual calls for DW-1 or Z1, this is the correct fluid.

It covers the vast majority of Honda and Acura conventional automatics from the mid-2000s forward, including Accord, Civic, CR-V, Odyssey, Pilot, Ridgeline, and the Acura TL, TSX, MDX, and RDX. Note that DW-1 is for the geared automatic, not the CVT or the dual-pump systems that use a different Honda fluid, so confirm your transmission type before filling.

On the bench or on a lift, most Honda automatics do not have a drain-and-fill pan gasket setup; you pull the drain bolt, let it empty, reinstall the bolt with a fresh 18mm crush washer, and refill through the dipstick tube to the level marks. A single drain typically pulls roughly 3 quarts, so a case of four covers one full service with a little to top off, and running two or three consecutive drain-and-fills is the common way to refresh the whole system without dropping the pan.

Using the correct Honda fluid matters here: these transmissions are sensitive to friction characteristics, and the wrong ATF is a frequent cause of torque-converter lockup shudder, flare, and harsh 1-2 shifts. DW-1 keeps the clutch and converter engagement smooth and holds its viscosity across a wide temperature range.