2018 GMC Terrain
6 configurations — EPA fuel economy ratings
| Trim / Variant | City MPG | Hwy MPG | Combined MPG | Fuel | Drive | Engine | Transmission |
|---|---|---|---|---|---|---|---|
| Terrain AWD | 21 | 26 | 23 | Premium Gasoline | All-Wheel Drive | 2L 4-cyl Turbo | Automatic 9-spd |
| Terrain AWD | 24 | 28 | 26 | Regular Gasoline | All-Wheel Drive | 1.5L 4-cyl Turbo | Automatic 9-spd |
| Terrain AWD | 28 | 38 | 32 | Diesel | All-Wheel Drive | 1.6L 4-cyl Turbo | Automatic 6-spd |
| Terrain FWD | 22 | 28 | 24 | Premium Gasoline | Front-Wheel Drive | 2L 4-cyl Turbo | Automatic 9-spd |
| Terrain FWD | 26 | 30 | 28 | Regular Gasoline | Front-Wheel Drive | 1.5L 4-cyl Turbo | Automatic 9-spd |
| Terrain FWD | 28 | 39 | 32 | Diesel | Front-Wheel Drive | 1.6L 4-cyl Turbo | Automatic 6-spd |