The Honda Ridgeline uses Honda ATF DW-1 transmission fluid in its automatic transmissions.
Across generations, Ridgeline models have relied on the DW-1 specification for their automatic transmissions, whether they originally shipped with a 5-speed or modernized to a newer unit. Using Dexron VI, Mercon V, or other multi-vehicle fluids can lead to shifting issues or longer-term wear, so owners are advised to confirm OEM DW-1 compatibility on the bottle or in the owner’s manual. In short, DW-1 is the recommended fluid for Ridgeline automatics.
Quick reference by Ridgeline generation
Here's a concise guide showing the official fluid specification for Ridgeline automatic transmissions by era. This helps when purchasing fluid or reviewing service guidance.
- 2006–2014 Ridgeline (5-speed automatic): Honda ATF DW-1
- 2017–present Ridgeline (9-speed automatic): Honda ATF DW-1
Conclusion: For all Ridgeline models with an automatic transmission, the recommended fluid is Honda ATF DW-1. Do not substitute Dexron VI or Mercon V unless explicitly approved by Honda for a specific service bulletin.
Where to buy and how to verify the right fluid
When shopping for fluid, look for products labeled Honda ATF DW-1 (sometimes listed as Honda/Acura ATF DW-1). If you’re unsure, consult the owner’s manual or ask a parts specialist or dealer to confirm the DW-1 designation before purchasing. Avoid multi-vehicle fluids unless they clearly state DW-1 compatibility.
- Check the product label for “Honda ATF DW-1” or “Honda/Acura ATF DW-1.”
- Avoid fluids clearly labeled Dexron VI, Mercon V, or generic “multi-vehicle” unless specifically approved as DW-1 compatible.
In short, always verify that the bottle or container is DW-1 compatible to ensure optimal shifting and transmission health in a Ridgeline.
Maintenance and service considerations
Transmission fluid service intervals for the Ridgeline can vary by year, driving conditions, and maintenance history. Many owners follow the vehicle’s maintenance schedule provided in the owner’s manual or by a Honda service advisor, with fluid changes typically performed via drain-and-fill or full flush depending on the transmission and condition. When servicing, use the correct DW-1 fluid and replace any required seals or washers as recommended by Honda.
Summary
Bottom line: A Honda Ridgeline’s automatic transmission takes Honda ATF DW-1. Use OEM DW-1 fluid, verify the product label, and consult the owner’s manual or a dealer for any model-specific notes. This ensures proper shifting and long-term transmission reliability across Ridgeline generations.