2015 · Small SUV · Gas / Flex-fuel
2015 GMC Terrain MPG & fuel economy
The 2015 GMC Terrain is a small SUV offered in 5 EPA-rated configurations. The most efficient version returns 26 MPG combined (22 city / 31 highway) on regular gasoline. Efficiency is unchanged from the 2014 model. Among 60 small SUVs rated for 2015, it ranks 18th for lowest fuel cost. At 15,000 miles a year with $3.10/gal regular gas, it costs about $1,788 a year to fuel.
What will it cost you?
Your mileage and prices are saved and used across the site.
Fuel average
The 2015 GMC Terrain's fuel average is 11.1 km/L (9.0 L/100 km), or 26 MPG combined: 9.4 km/L in the city and 13.2 km/L on the highway.
| MPG | km/L | L/100 km | |
|---|---|---|---|
| City | 22 | 9.4 | 10.7 |
| Highway | 31 | 13.2 | 7.6 |
| Combined | 26 | 11.1 | 9.0 |
How it ranks among 2015 Small SUVs
Full class ranking →Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.
Terrain MPG across model years
Full history →5 EPA-rated configurations
| Configuration | Type | City | Hwy | Combined | Range | Your cost / yr |
|---|---|---|---|---|---|---|
| FWD · 2.4L 4-cyl · 6-speed automatic Terrain FWD |
Flex-fuel | 22 MPG | 31 MPG | 26 MPG | — | $1,788 |
| FWD · 2.4L 4-cyl · 6-speed automatic Terrain FWD |
Gas | 22 MPG | 31 MPG | 26 MPG | — | $1,788 |
| AWD · 2.4L 4-cyl · 6-speed automatic Terrain AWD |
Gas | 20 MPG | 28 MPG | 23 MPG | — | $2,022 |
| FWD · 3.6L 6-cyl · 6-speed automatic Terrain FWD |
Gas | 17 MPG | 24 MPG | 19 MPG | — | $2,447 |
| AWD · 3.6L 6-cyl · 6-speed automatic Terrain AWD |
Gas | 16 MPG | 23 MPG | 19 MPG | — | $2,447 |
Specs (most efficient configuration)
- Fuel
- Regular gasoline or E85
- Engine / motor
- 2.4L 4-cyl
- Transmission
- 6-speed automatic
- Drivetrain
- FWD
- Passenger volume
- 100 cu ft
- Cargo volume
- 28 cu ft
- Tailpipe CO₂
- 347 g/mi
- EPA fuel economy score
- 6/10
- EPA greenhouse gas score
- 6/10
2015 GMC Terrain vs. rivals
Compare the 2015 Terrain
With any other car from any year, including other Terrain model years. Type a year to jump, e.g. "2015 Accord".
Frequently asked questions
What is the gas mileage of the 2015 GMC Terrain?
Up to 26 MPG combined (22 city / 31 highway).
What fuel does the 2015 GMC Terrain use?
Regular gasoline or E85.
What is the fuel average in km/L for the 2015 GMC Terrain?
The 2015 GMC Terrain's fuel average is 11.1 km/L (9.0 L/100 km), or 26 MPG combined: 9.4 km/L in the city and 13.2 km/L on the highway.
How much does it cost to fuel the 2015 GMC Terrain per year?
About $1,788 at 15,000 miles a year with $3.10/gal regular gas, or $11.92 per 100 miles. Use the calculator on this page to plug in your own mileage and prices.