The engine requires about 4.2 quarts (4.0 liters) of oil when performing a full change with a new filter.
For the 2019 Civic Si equipped with the 1.5-liter turbocharged engine, Honda’s service guidance lists a total oil capacity of roughly 4.2 quarts with a fresh filter. This baseline can vary slightly depending on the oil filter you use, the drain method, and how completely the old oil is removed. Always verify the level with the dipstick after filling and top off as needed to reach the proper mark.
Oil capacity and specifications
Official numbers from Honda’s service documentation summarize the engine’s oil capacity for this model as follows. The following figure refers to a full change with a new filter.
- Engine oil capacity with filter: 4.2 quarts (4.0 liters)
In practice, you may end up with a slightly different total depending on the exact filter, pan drainage, and whether you replace the filter during every change. Always start with 4.2 quarts and then fine‑tune to the correct level using the dipstick after running the engine and letting oil settle.
Recommended oil type and maintenance tips
Using the correct oil grade and following the recommended maintenance interval helps ensure optimal performance and longevity for the 1.5T engine.
- Grade/viscosity: 0W-20 full synthetic oil (Honda specifies 0W-20 for the 1.5T engine)
- Capacity reminder: about 4.2 quarts (4.0 liters) with a new filter; verify level with the dipstick after fill
- Oil-change interval: typically around 7,500 miles (12,000 km) under normal driving conditions; more frequent in severe service or track use
Note: Always consult the owner’s manual or your service manual for exact specifications for your vehicle’s VIN and regional guidelines. Using the correct oil and maintaining proper levels helps preserve warranty coverage and engine health.
Summary
The 2019 Honda Civic Si 1.5T takes about 4.2 quarts (4.0 liters) of engine oil with a new filter. Use 0W-20 full synthetic oil and confirm the level with the dipstick after filling, adjusting as needed. Follow Honda’s recommended maintenance interval and regional guidelines for best results.