The 2009 Civic LX with the 1.8-liter engine typically takes 4.2 quarts of engine oil for a full change with the filter, using 5W-20. This amount can vary slightly, so always verify the oil level with the dipstick after refilling.
The Civic LX uses a 1.8-liter i-VTEC engine (R18A1) and generally accepts synthetic-blend or full-synthetic 5W-20 oil. This article outlines the official capacity, practical variations, and maintenance tips to ensure the correct fill and long-term engine health.
Official oil capacity and practical notes
Before listing the typical capacities, note that the numbers reflect a standard oil change with the filter installed. Actual amounts can vary slightly based on the filter brand and engine condition.
- With oil filter replacement: 4.2 quarts (approximately 4.0 liters).
- Without replacing the filter (drain only): about 3.7 quarts (approximately 3.5 liters).
In practice, use the dipstick to confirm the correct level after adding oil and running the engine briefly to settle the oil. If you’re between readings, top up in small increments and recheck.
Oil type and maintenance guidelines
Proper oil type and maintenance help maximize engine longevity and performance for the 2009 Civic LX.
- Viscosity: 5W-20 is recommended for most climates and driving conditions.
- Oil type: API SN or newer; synthetic blend or full synthetic is acceptable and can support longer change intervals.
- Change interval: follow the owner’s manual. Typically around 5,000–7,500 miles when using synthetic oil, and about 3,750–5,000 miles with conventional oil, depending on driving conditions (short trips, high heat, and heavy traffic may shorten intervals).
Always verify local maintenance recommendations and consider your driving patterns when choosing oil type and change intervals. When in doubt, consult a Honda dealer or qualified mechanic for guidance tailored to your vehicle and climate.
Summary
For a 2009 Honda Civic LX, plan to use about 4.2 quarts of engine oil during a standard oil change with the filter, using 5W-20 oil. Always check the dipstick after refilling to ensure the level is correct, and follow the owner’s manual for oil type and change intervals. The engine in this model is the 1.8L i-VTEC (R18A1).