Honda Genuine DW-1 ATF Case of 12 Quarts 08200-9008

This is a full case of Honda Genuine ATF DW-1, part number 08200-9008, twelve sealed 1 US quart bottles. DW-1 is Honda's current factory automatic transmission fluid and it supersedes the older ATF-Z1, so it is what the dealer pours into every Honda and Acura conventional automatic that originally called for Z1. There is no aftermarket equivalent that Honda signs off on, and these gearboxes are notoriously picky about friction modifier, which is why techs keep genuine fluid on the shelf instead of a universal multi-vehicle ATF.

You buy fluid by the case for a Honda because a single drain does not change much. These transmissions have no serviceable pan filter and no pan to drop - you pull one drain plug and roughly three quarts comes out, about a third of the total charge. The accepted way to actually get clean fluid in the unit is a triple drain-and-fill: drain, refill, drive it up to operating temperature and shift through the range, then repeat twice more. That is nine quarts before you have touched what is trapped in the torque converter and cooler lines. Twelve quarts covers the full service with spare left over for a top-off.

Fits Honda and Acura conventional automatics, both the 5-speed units and the later 6-speeds - Accord, Civic, CR-V, Odyssey, Pilot, Ridgeline, Element, Fit, and the Acura TL, TSX, MDX and RDX. Two important exclusions: do not put DW-1 in a Honda CVT, those require HCF-2 and the wrong fluid there shows up as pushbelt shudder within a few hundred miles. The 9-speed and 10-speed automatics use ATF Type 3.1, not DW-1. Use a fresh sealing washer on the drain plug every time you pull it.

Worn out fluid in a Honda automatic usually announces itself as a flare or a hard 1-2 shift when the car is cold, or a low-speed shudder when the converter locks up around 40 mph. Fresh DW-1 will not bring back a clutch pack that is already burnt, but on a high-mileage unit that has never been serviced it is the cheapest thing you can do before you start pricing a rebuild.