The 2007 Honda Ridgeline uses Honda ATF DW-1 automatic transmission fluid. This is Honda’s own specification, and using the correct fluid is essential for smooth shifting and long transmission life. Here’s what you need to know about the spec and how to service it.
Fluid specification for the 2007 Ridgeline
Honda began adopting the ATF DW-1 specification in the mid-2000s, replacing older Z1 on many models. For the Ridgeline’s 5-speed automatic, DW-1 is the recommended fluid. Using Dexron III/VI or Honda Z1 in this transmission can cause shifting issues and wear. Always rely on the owner’s manual or a Honda service bulletin if you’re uncertain.
Old vs. new specifications
While some older Hondas used ATF-Z1, the 2007 Ridgeline calls for ATF DW-1. If you’re unsure, check the dipstick label or the service manual. Do not mix fluids unless the manufacturer explicitly allows it.
Here are the essentials to ensure proper fluid choice and service for this model:
- Fluid type: Honda ATF DW-1 (Honda Genuine Automatic Transmission Fluid DW-1).
- Do not mix ATFs with different specifications (for example, DW-1 with Dexron VI or Z1).
- When performing service, drain and refill with DW-1 and follow the manual for the exact amount and any filter servicing required.
In short, follow the DW-1 specification and proper service procedures to maintain shifting quality and transmission longevity.
Practical service notes
For routine maintenance, follow the vehicle’s owner’s manual or have a qualified technician perform the service. The correct DW-1 fluid and proper fill level are essential for reliable shifting and protection against wear. If you’ve inherited a Ridgeline with unknown maintenance history, a fluid change with a full drain-and-fill and any recommended service procedures is commonly advised to refresh the system.
Bottom line
The 2007 Honda Ridgeline’s automatic transmission requires Honda ATF DW-1. Using the appropriate fluid and following proper service steps is the best way to maintain shifting quality and long-term reliability.
Summary
For a 2007 Ridgeline, use Honda ATF DW-1 in the automatic transmission. Do not mix with other ATF types, and follow the owner’s manual or dealer guidance for service intervals and procedures. This ensures smooth shifting and extends the life of the transmission.