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GMC Terrain MPG

MPG Number of Vehicles
20 miles per gallon 2 vehicles
21 miles per gallon 8 vehicles
22 miles per gallon 8 vehicles
23 miles per gallon 22 vehicles
24 miles per gallon 16 vehicles
25 miles per gallon 16 vehicles
26 miles per gallon 16 vehicles
27 miles per gallon 6 vehicles
28 miles per gallon 4 vehicles
Model Year Body/Powertrain MPG  
2020 2020 4dr SUV turbocharged 252hp 2.0L I4 9-sp shiftable automatic 4WD 24.1
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With the turbocharged 252hp 2.0L I4 engine, 9-speed shiftable automatic transmission, and four-wheel drive, the 2020 GMC Terrain has been averaging 24.1 MPG (miles per gallon).

The 2020 GMC Terrains in this analysis were driven mostly on the highway at an average speed of 80 miles per hour (about 61.3 percent of the miles driven). The rest of the miles were in the suburbs (0 percent), in the city (0 percent), and in heavy traffic (0 percent).

In addition, the average 2020 GMC Terrain in this analysis was driven on flat terrain with a medium foot and the AC not used at all.

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2020 GMC Terrain Gas Mileage (MPG)

Unlike other fuel economy surveys, TrueDelta's Real-World Gas Mileage Survey includes questions about how and where a car was driven. So you can get an idea of the GMC Terrain's real-world MPG based on how and where you drive a car.