The Ridgeline typically requires about 12 quarts of transmission fluid for a full change, though the exact amount depends on model year and service method.
Two generations of Ridgeline use different transmissions, which affects capacity. This guide explains typical quantities for a complete fluid change, a standard drain-and-fill, and a full flush, along with the recommended ATF type to use.
First-generation Ridgeline (2006–2014)
The 2006–2014 Ridgeline uses a 5-speed automatic transmission. The figures below reflect common service scenarios for this generation.
- Total transmission fluid capacity (with filter): about 12 quarts.
- Drain-and-fill quantity (pan drain only, without replacing the filter): roughly 7–8 quarts.
- With a full flush or when replacing the transmission filter: about 11–12 quarts.
Bottom line for Gen 1: plan for around 12 quarts for a full change, about 7–8 quarts for a simple pan drain and fill, and roughly 11–12 quarts if doing a complete flush or filter replacement.
Second-generation Ridgeline (2017–present)
The 2017– Ridgeline uses a 9-speed automatic transmission. The figures below reflect typical service scenarios for this generation.
- Total transmission fluid capacity (with filter or full change): about 11–12 quarts.
- Drain-and-fill quantity (pan drain only): roughly 7–9 quarts.
- With a full flush or when replacing the transmission filter: about 11–12 quarts.
Bottom line for Gen 2: plan for roughly 11–12 quarts for a full change, about 7–9 quarts for a standard pan drain and fill, and around 11–12 quarts for a complete flush or filter replacement.
Notes on transmission fluid and procedure
Always use the correct ATF for your Ridgeline. Honda recommends ATF DW-1 for these transmissions. Verify the exact capacity and procedure for your specific VIN and year in the owner’s manual or service manual, especially if your vehicle has all-wheel drive or other options that can affect capacity.
Summary
Across generations, the Ridgeline generally takes about 11–12 quarts for a full transmission fluid change. A standard drain-and-fill without a filter change typically consumes about 7–9 quarts, while a full flush or filter replacement can require around 11–12 quarts. Always confirm exact specifications for your vehicle's year and configuration in the owner’s manual.