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Based on data from 38 vehicles, 3,466 fuel-ups and 913,201 miles of driving, the 2020 GMC Terrain gets a combined Avg MPG of 24.49 with a 0.16 MPG margin of error.

View detailed gas mileage data for the 2020 GMC Terrain. Use our handy tool to get estimated annual fuel costs based on your driving habits.

Research the 2020 GMC Terrain at Cars.com and find specs, pricing, MPG, safety data, photos, videos, reviews and local inventory.

Feb 18, 2025 · Get official 2020 gmc terrain MPG ratings. View detailed city, highway, and combined fuel economy data and compare with similar vehicles.

2020 GMC Terrain FWD, 1.5 Liters, 4 Cylinders, 9 Speeds, Automatic Transmission MPG City MPG: 26 MPG (U.S.)9 L/100km11 km/liter31 MPG (Imperial) Highway MPG: 30 MPG (U.S.)8 …

Dec 28, 2024 · Depending on trim level, the 2020 GMC Terrain gas mileage is from 23.5 to 33.5 miles per gallon combined. In the city, the 2020 Terrain gas mileage is from 21 to 28 miles per …

Drivers share their GMC Terrain MPG--along with their driving habits and road conditions--so you can learn what MPG by bodystyle and powertrain to actually expect.

🛣 How Many Miles per Gallon (MPG) Does a 2020 GMC Terrain AWD Get? Across all models, the combined average MPG for the 2020 GMC Terrain AWD is 25 miles per gallon.

The Terrain with the 1.5-liter engine is EPA rated at 28 mpg combined (26 city/30 highway), which is on par with the segment. We got 28.4 mpg on our mixed-driving test loop, but just 22.4 mpg...