About 4.5 quarts of engine oil are needed for a full oil change on the 2018 Civic 2.0, including the filter, using 0W-20 synthetic oil.
Understanding the oil capacity for the 2018 Civic 2.0
The 2018 Honda Civic with the 2.0-liter engine has an oil capacity of 4.5 quarts (approximately 4.3 liters) when you replace the oil filter. This figure is commonly cited by Honda and maintenance guides and applies to a standard oil change rather than just topping up. The recommended oil grade for this engine is 0W-20 full synthetic, suitable for most driving conditions.
Before you prepare to perform an oil change, it helps to know what to expect in terms of quantities and steps. The following list outlines the key points to consider when planning your service.
- Oil capacity (with filter): 4.5 quarts (4.3 L)
- Recommended oil: 0W-20 full synthetic (Honda-approved or equivalent)
- Oil filter: replace during the change to maintain proper filtration
- Measurement tip: pour gradually up to 4.5 quarts, run the engine, then recheck the dipstick and top off if needed
In summary, plan for about 4.5 quarts of oil when performing a full change on the 2018 Civic 2.0, and always verify the level with the dipstick after the engine has run and warmed up.
Practical notes for the oil change
For best results, use the recommended 0W-20 oil, replace the oil filter, and follow your owner's manual guidance for drain procedures and safety precautions. If you’re in a region with slightly different climate conditions, Honda may approve an alternative viscosity, but 0W-20 remains the standard for most U.S. models of this year and engine.
Summary
The 2018 Honda Civic 2.0-liter engine takes approximately 4.5 quarts of oil with the filter during a standard oil change, using 0W-20 full synthetic oil. Always confirm with the owner’s manual and perform a dipstick check after installation to ensure proper oil level.


