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|2014||2014 4dr SUV 301-hp 3.6L V6 6-sp shiftable automatic FWD||27.13||
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|With the 301-horsepower 3.6L V6 engine, 6-speed shiftable automatic transmission, and front-wheel drive, the 2014 GMC Terrain has been averaging 27.13 MPG (miles per gallon).
The 2014 GMC Terrains in this analysis were driven mostly on the highway at an average speed of 50 miles per hour (about 100 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 2014 GMC Terrain in this analysis was driven on flat terrain with a light foot and the AC not used at all.