The 2015 Honda Civic Si, powered by a 2.4-liter i-VTEC engine, requires about 4.5 quarts (4.3 liters) of engine oil when performing a full change with a new filter, using 0W-20 synthetic oil. This capacity includes the oil filter and is the standard amount recommended by Honda for a complete drain-and-fill procedure.
In practical terms, prepare to buy 4.5 quarts of 0W-20 synthetic oil and a compatible oil filter. After drainage and replacement, verify the final oil level with the dipstick while the engine is warm and the car is on level ground. The exact amount needed can vary slightly depending on whether the filter is replaced and how much oil remains in the engine after draining, so always recheck the level before driving.
Oil capacity and specifications
Key specifications you should know before starting an oil change are listed below.
- Capacity: 4.5 quarts (4.3 liters) of engine oil with a new filter
- Recommended oil type/viscosity: 0W-20 synthetic (Honda-approved)
- Filter: Replace with a new oil filter during every change
- Fill verification: After starting the engine and allowing oil to settle, recheck level with the dipstick and adjust as needed
Following these guidelines helps ensure proper lubrication and engine protection for the Civic Si. The figures above reflect the factory specification for North American-market vehicles.
Steps for a proper oil change
Here is a concise, step-by-step checklist to guide a typical oil-change procedure for the 2015 Civic Si.
- Gather supplies: 0W-20 synthetic oil, a suitable oil filter, drain pan, funnel, socket/wrench, and rags.
- Warm up the engine briefly, then park on level ground and engage the parking brake.
- Jack up the car if needed and place on stands for safety; locate and remove the drain plug to drain old oil completely.
- Remove the old oil filter and install a new filter, lubricating the gasket with a little new oil.
- Replace the drain plug, then refill with about 4.5 quarts of 0W-20 to start testing the level.
- Run the engine for a few minutes, turn it off, wait a couple of minutes, and check the dipstick. Add small amounts of oil as needed to reach the full mark.
- Dispose of the used oil properly and reset any maintenance reminders if applicable.
Following these steps helps ensure a clean, safe, and accurate oil-change process. Always consult the owner’s manual for region-specific recommendations and procedures.
Summary
For a 2015 Honda Civic Si, plan on about 4.5 quarts (4.3 liters) of engine oil with a new filter, using 0W-20 synthetic oil. Verify the final level with the dipstick after the engine runs and settles, and dispose of used oil responsibly. This guidance aligns with Honda’s factory specifications for the model year and region.