Honda Genuine ATF DW-1 Automatic Transmission Fluid (4-Pack)

Honda Genuine ATF DW-1 is manufactured by Idemitsu Lubricants America under Honda OEM contract and is the required fluid for most 2011 and newer Honda and Acura automatics, as well as older models that previously called for ATF-Z1. The spec is Honda-specific: no Dexron, Mercon, or ZF approvals exist because the fluid is engineered exclusively for Honda's multi-plate clutch-pack transmissions, which use a friction-modifier package that differs from domestic or European automatic transmission designs. Honda service documentation confirms a standard 30,000-mile drain-and-fill interval for most applications. Community experience across Odyssey, Civic, Accord, and CR-V owners corroborates this interval without reports of early degradation. A recurring theme in long-term owner reports is gear-change shudder or jerkiness resolving after a DW-1 fluid change, including vehicles with 180,000 to 230,000 miles.

The right buyer is anyone maintaining a Honda or Acura vehicle whose owner's manual specifies ATF DW-1 or ATF-Z1, covering the majority of Honda automatics from roughly 2000 onward: Accord, Civic, CR-V, HR-V, Odyssey, Pilot, Ridgeline, and most Acura models. Owners of CVT-equipped Hondas should verify their vehicle's spec first; most Honda CVTs require a separate CVT fluid, not ATF DW-1. Owners of non-Honda vehicles should use the fluid their OEM specifies.

The GHS Safety Data Sheet for this fluid carries no hazard signal word and no H-codes at the mixture level; it is not classified as hazardous under the 2012 OSHA Hazard Communication Standard. A Proposition 65 warning applies due to trace aniline from petroleum processing (below 0.001% by weight per Idemitsu MSDS 1664-042 §15). The flash point is 170°C (Class IIIB combustible liquid); no special flammability precautions are required for normal storage and use. Take spent ATF to a used-oil collection facility; do not pour into storm drains or soil.