2015 Honda Pilot Transmission Fluid & Service

Quick answer

• Transmission: Honda BGRA / MJKA 5-Speed Automatic
• OEM Fluid Spec: Honda ATF-Z1 (discontinued, superseded by Honda DW-1)
• Drain & Fill Capacity: Approximately 3.1 - 3.3 US Quarts (2.9 - 3.1 Liters)
• Full Overhaul Capacity: Approximately 7.8 US Quarts (7.4 Liters)
• Filter OEM Part Number: No serviceable external filter. Internal filter is lifetime and not typically replaced during routine service.
• Recommended Service Interval:
  • Normal Duty: Every 60,000 miles or 3 years (whichever comes first).
  • Severe Duty / Towing: Every 30,000 miles or 1.5 years (whichever comes first).

Fluid type explained

The 2015 Honda Pilot with the 5-speed automatic transmission was originally designed to use Honda ATF-Z1 automatic transmission fluid. However, Honda ATF-Z1 has been discontinued and superseded by Honda DW-1 Automatic Transmission Fluid. It is crucial to use only genuine Honda DW-1 fluid for your 2015 Pilot's transmission. While some aftermarket fluids claim to be compatible with Honda specifications, using anything other than genuine Honda DW-1 can lead to premature wear, poor shift quality, and potential transmission damage. Honda DW-1 is a specially formulated fluid designed to meet the specific lubrication and friction requirements of Honda transmissions, ensuring optimal performance and longevity.

Service procedure

Unlike many other transmissions, the 5-speed automatic found in the 2015 Honda Pilot does not have a serviceable external transmission filter. There is an internal filter, but it's considered a lifetime component and is not replaced during routine fluid changes. This means your service procedure will focus entirely on fluid replacement.

Drain & Fill

The recommended service for the Honda Pilot's transmission is a simple drain and fill. This procedure replaces only a portion of the total transmission fluid, as a significant amount remains in the torque converter and other internal passages. While a single drain and fill is sufficient for regular maintenance, some owners opt for a "3x drain and fill" to replace a higher percentage of the old fluid. This involves driving the vehicle for a short period (e.g., 10-20 miles) after the first drain and fill, then repeating the process two more times. This method is more effective at refreshing the fluid but requires more fluid and time.

Tools and Materials Needed:

• Jack and jack stands (or car ramps)
• Drain pan
• 18mm wrench or socket for drain plug
• Funnel
• Genuine Honda DW-1 Automatic Transmission Fluid (approximately 3-4 quarts per drain and fill)
• Crush washer for the drain plug (always replace!)
• Torque wrench

Steps:

1. Warm-up the vehicle: Drive the Pilot for about 10-15 minutes to bring the transmission fluid to operating temperature. This helps the fluid drain more thoroughly.
2. Park on a level surface: Ensure the vehicle is safely secured on a level surface. Apply the parking brake.
3. Lift the vehicle: Safely lift the front of the vehicle using a jack and secure it with jack stands, or drive it onto car ramps.
4. Locate the drain plug: The transmission drain plug is typically located on the bottom of the transmission case, often on the passenger side. It uses an 18mm bolt.
5. Place drain pan: Position a suitable drain pan underneath the drain plug.
6. Remove drain plug: Carefully loosen and remove the drain plug, allowing the fluid to drain completely. Be cautious, as the fluid may be hot. The fluid will drain for several minutes.
7. Replace crush washer: Once the fluid has stopped draining, clean the drain plug and install a new crush washer. This is critical to prevent leaks.
8. Reinstall drain plug: Hand-tighten the drain plug, then torque it to the manufacturer's specification (typically around 35 lb-ft, but always verify with a service manual).
9. Lower the vehicle: Carefully lower the vehicle back to a level surface.
10. Locate the fill bolt/dipstick: On the 2015 Honda Pilot, the transmission fill is typically done through the dipstick tube. Remove the dipstick.
11. Add new fluid: Using a funnel, slowly add the new Honda DW-1 fluid. Add approximately 3.1 - 3.3 quarts.
12. Check fluid level: Start the engine and let it run for a few minutes. Shift through all the gears (P, R, N, D), pausing briefly in each. Then, with the engine running and the vehicle on a level surface, check the fluid level using the dipstick. The fluid level should be between the