2012 Honda Civic Natural GasFuel Economy & MPG Ratings
Gasoline Compact CarsFront-Wheel Drive
City
27
MPG
Highway
38
MPG
Combined
31
MPG
Real-World MPG
Based on 6 owner reports via EPA fueleconomy.gov
41.0MPG average+32.2% vs EPA label
EPA combined: 31 MPG · Owner reported avg: 41.0 MPG
Range: 38–46 MPG
Driving mix: City 23% / Highway 77%
Source: EPA fueleconomy.gov “Your MPG” owner submissions. Real-world results vary by driver behavior, conditions, and equipment.
Owner reported MPG for this vehicle averages 41.0 real world MPG based on 6 owner reports. EPA combined rating is 31 MPG.
Trim Comparison
Automatic 5-spd
CNG CNG
City
27
Hwy
38
Comb
31
Fuel cost: $1,450/yr
| Trim | Engine | City | Hwy | Combined | Fuel Cost/yr |
|---|---|---|---|---|---|
| Automatic 5-spd | CNG CNG | 27 | 38 | 31 | $1,450 |
Annual Fuel Cost
$1,450
Based on gasoline at $3.67/gal, 15,000 miles/year
5-Year Fuel Savings
$4,750
vs. average new vehicle
EPA Fuel Economy Score: -1/10
GHG Score: -1/10
Environment
- CO₂ Tailpipe Emissions
- 227 g/mile
- Annual Petroleum Consumption
- 0.0 barrels
Specifications
- Engine
- 1.8L 4-cyl
- Transmission
- 5-speed Automatic
- Drivetrain
- FWD
- Body Style
- Sedan
- GVWR
- Class 1 (≤6,000 lbs)
Source: EPA fuel economy data & NHTSA vPIC. Specifications reflect the most common trim configuration.
Engine & Efficiency Details
Source: EPA fueleconomy.gov
- Engine Size
- 1.8L, 4-cylinder
- Induction Type
- RNG=190
- Fuel Type
- Natural Gas
Annual Fuel Cost by State
Prices as of week ending May 18, 2026 · Source: EIA
National AvgEPA default
$4.490/gal$2,173/yr
California
$5.957/gal$2,882/yr
Texas
$3.888/gal$1,881/yr
Florida
$4.136/gal$2,001/yr
New York
$4.522/gal$2,188/yr
Ohio
$4.510/gal$2,182/yr
Washington
$5.591/gal$2,705/yr
Colorado
$4.618/gal$2,235/yr
Minnesota
$4.344/gal$2,102/yr
Massachusetts
$4.448/gal$2,152/yr
| State | Gas Price | Annual Cost | vs. National Avg |
|---|---|---|---|
| National AvgEPA default | $4.490/gal | $2,173/yr | — |
| California | $5.957/gal | $2,882/yrHIGHEST | +$709 |
| Texas | $3.888/gal | $1,881/yrLOWEST | $-292 |
| Florida | $4.136/gal | $2,001/yr | $-172 |
| New York | $4.522/gal | $2,188/yr | +$15 |
| Ohio | $4.510/gal | $2,182/yr | +$9 |
| Washington | $5.591/gal | $2,705/yr | +$532 |
| Colorado | $4.618/gal | $2,235/yr | +$62 |
| Minnesota | $4.344/gal | $2,102/yr | $-71 |
| Massachusetts | $4.448/gal | $2,152/yr | $-21 |
Calculated at 15,000 miles/year (EPA standard assumption) using 31 MPG combined. Regular gasoline prices. Actual costs vary.
Related
Honda Civic Natural Gas MPG History
See how this model's fuel economy changed by year