For the 2018 Honda Civic, the required engine oil capacity depends on the engine option: about 4.4 quarts for the 1.5-liter turbo and about 4.7 quarts for the 2.0-liter engine, including the filter.
Engine variants and oil capacity
The 2018 Civic lineup offers two main engines, and the oil capacity varies between them. The following figures assume a full oil change with a new filter and including the oil filter.
- 1.5L turbocharged engine (EX, EX-L, Touring) — approximately 4.4 quarts of engine oil with the filter.
- 2.0L naturally aspirated engine (LX, Sport, EX) — approximately 4.7 quarts of engine oil with the filter.
Note: Exact capacity can vary slightly by production batch or if you’re using a different oil filter. If you’re unsure which engine your car has, check the owner’s manual, the under-hood label, or the vehicle identification number (VIN) with a Honda dealer.
How to verify your engine type
To confirm which engine your Civic has, look under the hood for the engine code tag, check the owner’s manual, or review the original window sticker. The 1.5L turbo is designated by a turbo badge and typically powers EX trims and above, while the 2.0L engine powers base LX and certain Sport models.
Practical notes on capacity
When performing an oil change yourself, plan to add oil gradually. Start with the lower figure (4.4 or 4.7 quarts, depending on engine) and then recheck using the dipstick after running the engine and letting it settle. Always use the recommended oil weight and a new filter for best results.
Oil change steps for DIYers
Below is a straightforward sequence for a typical oil change, keeping in mind the capacity discussed above.
- Warm up the engine briefly, then park on a level surface and gather supplies (oil, new filter, wrench, drain pan, funnel, gloves).
- Drain the old oil: place a drain pan under the oil pan, remove the drain plug, and allow the oil to fully drain.
- Replace the oil filter: remove the old filter, coat the new filter’s gasket with a bit of new oil, and install it securely.
- Replace the drain plug and add fresh oil: reinstall the drain plug, then pour in the appropriate amount (start with 4.4 quarts for the 1.5L or 4.7 quarts for the 2.0L).
- Check the level: run the engine for a minute, turn it off, wait a few minutes, then check the dipstick and adjust to the full mark if needed.
- Check for leaks and dispose of used oil responsibly.
Conclusion: If you’re not comfortable performing an oil change yourself, a quick visit to a service center will ensure the correct oil type and capacity are used, and that the level is properly set.
Summary
In summary, a 2018 Honda Civic requires about 4.4 quarts of oil for the 1.5L turbo and about 4.7 quarts for the 2.0L engine, with the filter included. Always verify with the owner’s manual or the engine label, and adjust based on your specific trim and production batch. When in doubt, consult a certified Honda technician.