2015 head-to-head · Compact Car
2015 Honda Civic CNG vs Kia Forte
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
FWD · 1.8L 4-cyl · 5-speed automatic · 31 MPGe
The 2015 Honda Civic CNG is the cheaper one to run. Driving 15,000 miles a year with $2.90/gge natural gas and $3.10/gal regular gas, it costs about $1,403 a year to fuel (31 MPGe), versus $1,550 for the 2015 Kia Forte (30 MPG). That's roughly $147 a year, or about $734 over five years.
Your numbers
Change these to match your driving and local prices. Every figure and chart on this page updates.
Fuel cost over 10 years
- Honda Civic CNG
- Kia Forte
Side by side
| Honda Civic CNG | Kia Forte | |
|---|---|---|
| $1,403 | Your annual fuel cost | $1,550 |
| 31 MPGe | Combined efficiency | 30 MPG |
| 27 MPGe | City | 26 MPG |
| 38 MPGe | Highway | 37 MPG |
| 95 cu ft | Passenger volume | 96 cu ft |
| 6 cu ft | Cargo volume | 14 cu ft |
| 218 g/mi | Tailpipe CO₂ (g/mi) | 294 g/mi |
| 8/10 | EPA fuel economy score | 8/10 |
| 9/10 | EPA greenhouse gas score | 8/10 |
| Natural gas | Powertrain | Gas |
| Natural gas (CNG) | Fuel | Regular gasoline |
| 1.8L 4-cyl | Engine / motor | 1.8L 4-cyl |
| 5-speed automatic | Transmission | 6-speed automatic |
| FWD | Drivetrain | FWD |
✓ marks the better value. EPA scores run 1–10 (10 is best). Volumes come from the EPA interior volume index and aren't published for every body style.
Honda Civic CNG vs Kia Forte across model years
- Honda Civic CNG
- Kia Forte
Annual fuel cost of the most efficient configuration of each model year, at your prices. Click a point to open that year.
How they differ
Per EPA interior volume figures, the Kia Forte has more cargo space (14 vs. 6 cu ft).
Among 52 2015 compact cars, the Honda Civic CNG ranks 12th and the Kia Forte 20th for lowest fuel cost.
The powertrains differ: the Honda Civic CNG is a natural-gas vehicle, while the Kia Forte is a conventional gas model.
Frequently asked questions
Which is more fuel-efficient, the 2015 Honda Civic CNG or the 2015 Kia Forte?
Measured by cost to drive, the Honda Civic CNG. The Honda Civic CNG is rated 31 MPGe combined and the Kia Forte 30 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2015 Honda Civic CNG vs. the Kia Forte per year?
At 15,000 miles a year with $2.90/gge natural gas and $3.10/gal regular gas, about $1,403 for the Honda Civic CNG and $1,550 for the Kia Forte.
Which has more cargo space?
The Kia Forte, with 14 cu ft of luggage volume versus 6 cu ft (EPA interior volume index).
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