The 2014 Honda Civic Si uses 0W-20 full-synthetic motor oil, with an oil capacity of about 4.4 quarts (roughly 4.2 liters) including the filter. The oil should meet API SN or newer and ILSAC GF-5 specifications, per Honda’s guidance.
Oil type and capacity
The Civic Si's 2.4-liter i-VTEC four-cylinder relies on a lightweight, synthetic lubricant to balance performance and efficiency. Honda specifies 0W-20 full synthetic oil for this model year, and the engine oil capacity is about 4.4 quarts with the filter installed. The oil must meet API SN or newer and ILSAC GF-5 or better.
Key specifications at a glance:
- Oil type: 0W-20 full synthetic
- Capacity: 4.4 quarts (with filter)
- Specifications: API SN or newer; ILSAC GF-5 or better
- Recommended source: Honda Genuine Oil or another full synthetic that meets the above specs
Using the correct oil type and capacity helps protect the engine and maintain performance, especially under typical driving conditions and temperature swings.
Maintenance and change intervals
Honda’s Maintenance Minder system guides when to change the oil, based on actual driving conditions. In normal use, this often translates to roughly every 5,000 to 7,500 miles, but severe driving — such as frequent short trips, extreme temperatures, or heavy loads — may require more frequent changes. Always follow the Maintenance Minder and the owner’s manual for the precise interval.
If you’re planning a DIY oil change, here is a practical checklist to follow.
DIY oil-change checklist:
- Warm the engine to operating temperature to improve drainage.
- Secure the vehicle on a level surface and place a drain pan beneath the oil pan.
- Remove the drain plug and allow the old oil to drain completely.
- Replace the oil filter with a new one designed for the 2014 Civic Si.
- Reinstall the drain plug and tighten to the manufacturer's specification.
- Fill with 4.4 quarts of 0W-20 full synthetic oil, then start the engine and check for leaks.
- Use the dipstick to verify the oil level and add more if necessary to reach the full mark.
- Dispose of used oil and the old filter at a proper recycling facility.
Keep in mind: using the correct grade and maintaining the oil level are essential to engine longevity. After an oil change, reset the Maintenance Minder if your vehicle doesn’t do so automatically.
Where to source the oil and compatibility notes
For most owners, a reputable 0W-20 full-synthetic oil that meets API SN or newer and ILSAC GF-5 is appropriate. Honda Genuine Oil is a reliable option, but many third-party brands that meet the same specifications will work as well. If you drive outside North America or in regions with different climate considerations, always consult the local owner's manual for any regional variations.
Summary
In summary, the 2014 Civic Si requires 0W-20 full-synthetic motor oil, with an approximate capacity of 4.4 quarts (including the filter). The oil should conform to API SN or newer and ILSAC GF-5 specifications. Rely on the Maintenance Minder to determine the exact change interval and use a high-quality oil to protect the engine and maintain performance over time.