2018 GMC Terrain: Terrain AWD · 1.5L · AWD · 9-speed automatic
One configuration of the 2018 GMC Terrain as listed by our sources. Every figure below carries its source.
| Specification | Value | Source |
|---|---|---|
| Engine | 1.5L 4-cylinder turbocharged (SIDI) | EPA fueleconomy.gov |
| Displacement | 1.5 L | EPA fueleconomy.gov |
| Cylinders | 4 | EPA fueleconomy.gov |
| Fuel type | Gasoline | EPA fueleconomy.gov |
| Transmission | 9-speed automatic | EPA fueleconomy.gov |
| Drivetrain | AWD | EPA fueleconomy.gov |
| Combined economy | 26 mpg (9.0 L/100 km) | EPA fueleconomy.gov |
| City economy | 24 mpg (9.8 L/100 km) | EPA fueleconomy.gov |
| Highway economy | 28 mpg (8.4 L/100 km) | EPA fueleconomy.gov |
Provenance & verification
- EPA fueleconomy.gov · US Government public data
Source checked: October 12, 2026
Data verified: October 13, 2026