The 2021 Honda Insight’s engine oil capacity is 3.7 quarts (3.5 liters) when performing an oil change, including the oil filter. The vehicle uses a 0W-20 viscosity oil in its 1.5-liter Atkinson-cycle hybrid powertrain.
Oil capacity and engine details
The following items summarize the capacity and related engine details you should know before an oil service.
- 3.7 quarts (3.5 liters) of engine oil with the oil filter
Sticking to this capacity ensures proper lubrication and helps maintain the efficiency of the hybrid powertrain.
Oil type, viscosity and service intervals
Oil grade and standards
The Insight recommends 0W-20 viscosity oil, meeting API SN Resource Conserving and ILSAC GF-5 specifications.
- 0W-20 viscosity; API SN/Resource Conserving; ILSAC GF-5 compliant
Using the recommended grade supports fuel economy and long-term engine protection in Honda’s hybrid system.
Service intervals
Oil change intervals vary by driving conditions, but typical guidelines are:
- Normal driving: every 7,500 miles or 12 months, whichever comes first
- Severe driving: more frequent changes (follow the owner's manual)
For precise scheduling, consult the maintenance minder in the car or the owner's manual based on climate and usage.
Summary
The 2021 Honda Insight takes 3.7 quarts of engine oil with a filter, using 0W-20 oil. Standard change intervals are 7,500 miles or 12 months under normal conditions, with more frequent changes advised for severe service scenarios.