Boost Your 2023 Honda Civic MPG by 5-10%
You can gain 5 to 10 percent on your 2023 Honda Civic's fuel economy. Smart driving and basic maintenance help most trims hit near the top EPA range of 35 to 36 MPG combined.
EPA ratings differ by trim. Most Civics get 30 to 33 MPG city, 37 to 40 MPG highway, and 33 to 36 MPG combined. The 12.4-gallon tank lets a well-tuned Civic travel 410 to 450 miles per fill-up. Drive 12,000 miles a year? A 10 percent MPG gain saves 30 gallons. At $3.50 per gallon, that cuts $100 from your fuel bill.
Quick Wins for Better MPG
These steps deliver fast results:
| Action | How Often | Typical Gain |
|---|---|---|
| Set tire pressure to door label | Monthly or before trips | Up to 3% |
| Drive smoothly at steady speeds | Every trip | 5% to 15% on highways |
| Remove roof racks and extra weight | As needed | 1% to 10% on highways |
| Replace engine air filter | 15,000 to 30,000 miles | 1% to 3% |
| Check wheel alignment | Yearly or after impacts | 1% to 2% |
Tires and Alignment
Check cold tire pressure against the driver door label each month and before long trips. Low pressure increases rolling resistance and drops MPG.
Rotate tires on schedule. Fix alignment every year or after hitting potholes. A car that pulls to one side or shows uneven tire wear burns extra fuel.
Smart Driving Habits
Ease onto the throttle. Build speed smoothly and keep RPMs low. Target 55 to 65 mph on highways. Every 5 mph over 65 cuts MPG.
Use cruise control on flat roads. Coast to red lights. Skip long idles. After cold starts, drive off gently once the engine warms past 30 seconds.
Cut Weight and Drag
Clear junk from the trunk. Each 100 extra pounds trims about 1 percent MPG.
Ditch roof racks and boxes when you don't need them. Roof boxes slash highway MPG by 10 to 20 percent.
Key Maintenance Tasks
Use 0W-20 oil that meets Honda specs. Change it when the Maintenance Minder hits 15 percent. That happens every 7,500 to 10,000 miles.
Swap the engine air filter every 15,000 to 30,000 miles. Do it sooner in dusty spots. Clogged filters hurt efficiency.
Make sure brakes don't drag. Listen for quiet wheel bearings. Clear any check engine light right away.
Fuel and Climate Tips
Fill up with regular 87 octane from Top Tier stations. Skip higher octane unless required. It won't boost MPG.
E10 ethanol blends cut MPG by about 3 percent compared to pure gas. Winter blends trim it a bit more.
Switch to ECO mode for softer throttle and efficient A/C. On highways, keep windows up with light A/C. It beats open windows.
The Sidekick app tracks your Civic's real MPG against EPA ratings. It sends reminders for tire checks and maintenance that save fuel.