The 10th-generation Civic Si (2017–2021) uses about 3.7 quarts (3.5 liters) of engine oil with a new filter, and Honda specifies 0W-20 full-synthetic oil. Always verify the exact figure for your specific year and market using the owner's manual or under-hood labels.
In more detail, the Civic Si relies on a 1.5-liter turbocharged engine. The standard capacity is typically quoted as 3.7 quarts with the filter, though some references note a slightly lower amount without considering the filter. The recommended lubricant is 0W-20 full synthetic, and the oil level should be checked with the engine cool and the car on a level surface. When performing an oil change, replace the filter and reset the oil-life indicator as needed.
Capacity and specification
Key figures
Before listing the core numbers, note that exact figures can vary by model year and market. The commonly cited specifications for most 10th-gen Civic Si models are:
- Oil capacity with filter: 3.7 quarts (3.5 liters)
- Recommended oil: 0W-20 full synthetic
- Typical oil-change interval (normal driving): about 7,500 miles (12,000 kilometers) or 12 months, whichever comes first
Bottom line: Use about 3.7 quarts of 0W-20 full-synthetic oil when performing an oil change, and verify against your manual for any year-specific variance.
Maintenance and intervals
Oil change guidance and best practices
To keep the 10th-gen Civic Si running smoothly, follow these guidance points commonly recommended by Honda and service professionals:
- Follow Honda’s recommended OCI (oil-change interval): typically 7,500 miles (12,000 km) for normal driving, or shorter under severe driving conditions
- Use 0W-20 full-synthetic oil as specified by Honda
- Replace the oil filter at each oil change and reset the oil-life monitor after refilling
Conclusion for maintenance: Adhering to the recommended oil type and change interval helps preserve performance and warranty coverage, and ensures the engine remains properly lubricated under the Si’s turbocharged conditions.
Additional notes and practical tips
For best results, verify the exact capacity and specification for your specific vehicle year and market, since some regional production runs may show minor differences. Always consult the owner's manual or a trusted Honda service source if you’re unsure.
Summary: The 10th-generation Civic Si typically requires about 3.7 quarts (3.5 liters) of 0W-20 full-synthetic oil with a new filter. Use Honda’s recommended oil-change interval, usually around 7,500 miles or 12 months, and confirm exact figures for your exact model year and region. Regular checks and proper reset of maintenance indicators help maintain peak performance.