About 5.5 quarts (roughly 5.2 liters) of engine oil are needed for a full oil change on the 2021 Honda Pilot with the 3.5-liter V6.
That figure reflects a standard drain-and-fill change with a new filter. The exact amount can vary slightly if you’re not replacing the filter or if you’re dealing with a different engine variant. Always verify with the owner’s manual and check the dipstick after filling.
Oil capacity overview
Below are the typical capacity figures to keep on hand when planning a full oil change, along with a note on viscosity.
- Engine oil capacity with a new filter: 5.5 quarts (5.2 liters)
- Capacity without replacing the filter (roughly): about 5.0 quarts (4.7 liters)
- Recommended oil viscosity: 0W-20 synthetic (check your owner's manual for climate-specific guidance)
When in doubt, measure with a dipstick and follow the maintenance minder for intervals.
Additional considerations for maintenance
Choosing the right oil
Honda generally specifies 0W-20 synthetic oil for the Pilot’s 3.5L V6. This viscosity supports fuel efficiency and engine protection. Use synthetic oil unless your manual specifies otherwise for your climate and driving conditions.
Oil change intervals
With synthetic 0W-20, many drivers see intervals around 7,500 miles (12,000 km) under normal driving, but severe conditions or frequent short trips can shorten that window. Rely on the vehicle’s maintenance minder and the owner's manual to determine the exact schedule.
Summary
For the 2021 Honda Pilot’s 3.5L V6, plan on roughly 5.5 quarts of engine oil for a standard oil change with a new filter, using 0W-20 synthetic oil. Always confirm with the manual and dipstick, and follow the maintenance minder guidance to determine when service is due.


