Approximately 3.1 quarts (about 2.9 liters) of engine oil are required for a full oil change on the 2021 Civic with the 1.5-liter turbo engine, including a new filter.
The 1.5-liter turbo in the 2021 Civic uses 0W-20 full synthetic oil. The official capacity for a change with the filter is around 3.1 quarts, with minor variation depending on the oil filter and production batch. Always verify the final level with the dipstick after adding oil.
Oil capacity and specifications
Context for the capacity figures
Capacity figures reflect the amount needed to fill the engine after draining the old oil and replacing the filter. Real-world amounts can vary slightly based on the exact filter installed and whether any extra oil remains in the engine after draining.
- Capacity (with filter): about 3.1 quarts (2.9 liters).
- Recommended oil: 0W-20 full synthetic.
- Fill guidance: start with the full amount, then check the dipstick and top up in small increments if needed.
Note: Always verify the final oil level with the dipstick after starting the engine and letting it run briefly, then parking and checking again.
What you’ll need for an oil change
Having the right supplies on hand helps ensure a clean, complete job and accurate oil level.
- 0W-20 full synthetic motor oil (about 3.1 quarts for a complete change).
- New oil filter compatible with the 1.5L turbo engine.
- Drain pan, funnel, and a ratchet/socket set for the drain plug.
- Car jack and stands (or ramps) to safely elevate the vehicle.
- Rags or paper towels and gloves for cleanup.
- Torque wrench for precise drain plug torque if desired (check the owner's manual for the spec).
With the right supplies, the oil change can typically be completed in about 30–60 minutes depending on your setup. After finishing, recheck the oil level and inspect for leaks.
Step-by-step overview: how to check and change the oil
Follow these basic steps to perform a standard oil change on the 2021 Civic 1.5L turbo. Note that exact torque specs and drain plug details should be verified in the owner's manual or service data sheet.
- Warm up the engine briefly, then park on a level surface and turn off the engine. Engage the parking brake and place wheel chocks if available.
- Raise the front of the car and secure it on jack stands or ramps.
- Place the drain pan beneath the oil drain plug; remove the plug and allow oil to drain completely.
- Remove the old oil filter, letting any residual oil drain into the pan; install the new filter according to the manufacturer's instructions.
- Reinstall the drain plug with a new washer if required, and tighten to the specified torque.
- Pour in the recommended 0W-20 oil in stages, starting with about 2.5–3.0 quarts, then check the level with the dipstick.
- Start the engine, run briefly, then turn off and recheck for leaks; add small amounts of oil as needed until the dipstick reads near the full line.
Bottom line: use the correct oil grade, replace the filter, and verify the final level with the dipstick after the engine has cooled and been checked.
Summary
For the 2021 Honda Civic with the 1.5L turbo engine, plan for about 3.1 quarts (approximately 2.9 liters) of 0W-20 full synthetic oil per oil-change cycle, including a new filter. Actual amounts can vary slightly due to filter choice and production variations. Always confirm the final oil level with the dipstick and follow the vehicle’s maintenance schedule in the owner’s manual.