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GMC Terrain Fuel Economy (km/L)

km/L Number of Vehicles
7 kilometers per liter 3 vehicles
8 kilometers per liter 2 vehicles
9 kilometers per liter 6 vehicles
10 kilometers per liter 24 vehicles
11 kilometers per liter 14 vehicles
12 kilometers per liter 1 vehicles
13 kilometers per liter 0 vehicles
14 kilometers per liter 0 vehicles
15 kilometers per liter 0 vehicles
16 kilometers per liter 0 vehicles
17 kilometers per liter 0 vehicles
18 kilometers per liter 0 vehicles
19 kilometers per liter 0 vehicles
20 kilometers per liter 0 vehicles
21 kilometers per liter 0 vehicles
22 kilometers per liter 0 vehicles
23 kilometers per liter 0 vehicles
24 kilometers per liter 0 vehicles
25 kilometers per liter 0 vehicles
26 kilometers per liter 0 vehicles
27 kilometers per liter 0 vehicles
28 kilometers per liter 0 vehicles
29 kilometers per liter 0 vehicles
30 kilometers per liter 0 vehicles
31 kilometers per liter 0 vehicles
32 kilometers per liter 0 vehicles
33 kilometers per liter 0 vehicles
34 kilometers per liter 0 vehicles
35 kilometers per liter 0 vehicles
36 kilometers per liter 0 vehicles
37 kilometers per liter 0 vehicles
38 kilometers per liter 0 vehicles
39 kilometers per liter 0 vehicles
40 kilometers per liter 1 vehicles
41 kilometers per liter 4 vehicles
42 kilometers per liter 3 vehicles
43 kilometers per liter 1 vehicles
44 kilometers per liter 4 vehicles
45 kilometers per liter 1 vehicles
46 kilometers per liter 2 vehicles
47 kilometers per liter 2 vehicles
48 kilometers per liter 5 vehicles
49 kilometers per liter 2 vehicles
50 kilometers per liter 7 vehicles
51 kilometers per liter 10 vehicles
52 kilometers per liter 6 vehicles
53 kilometers per liter 8 vehicles
54 kilometers per liter 22 vehicles
55 kilometers per liter 15 vehicles
56 kilometers per liter 14 vehicles
57 kilometers per liter 15 vehicles
58 kilometers per liter 15 vehicles
59 kilometers per liter 18 vehicles
60 kilometers per liter 17 vehicles
61 kilometers per liter 17 vehicles
62 kilometers per liter 14 vehicles
63 kilometers per liter 7 vehicles
64 kilometers per liter 5 vehicles
65 kilometers per liter 5 vehicles
66 kilometers per liter 4 vehicles
67 kilometers per liter 4 vehicles
68 kilometers per liter 4 vehicles
69 kilometers per liter 1 vehicles
70 kilometers per liter 0 vehicles
71 kilometers per liter 2 vehicles
72 kilometers per liter 0 vehicles
73 kilometers per liter 3 vehicles
Model Year Body/Powertrain km/L  
2020 2020 4dr SUV turbocharged 252hp 2.0L I4 9-sp shiftable automatic 4WD 57.39
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With the turbocharged 188kW 2.0L I4 engine, 9-speed shiftable automatic transmission, and four-wheel drive, the 2020 GMC Terrain has been averaging 57.39 L/100km (liters per 100 kilometers).

The 2020 GMC Terrains in this analysis were driven mostly on the highway at an average speed of 80 kilometers per hour (about 63.6 percent of the kilometers driven). The rest of the kilometers 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.
2016 2016 4dr SUV turbocharged 252hp 2.0L I4 9-sp shiftable automatic 4WD 9.9
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2014 2014 4dr SUV 301-hp 3.6L V6 6-sp shiftable automatic FWD 63.8
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2013 2013 4dr SUV turbocharged 252hp 2.0L I4 9-sp shiftable automatic 4WD 6.96
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2013 2013 4dr SUV 182-hp 2.4L I4 6-sp shiftable automatic FWD 56.5
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2012 2012 4dr SUV turbocharged 252hp 2.0L I4 9-sp shiftable automatic 4WD 41.95
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2012 2012 4dr SUV 182-hp 2.4L I4 6-sp shiftable automatic AWD 10.42
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2012 2012 4dr SUV 182-hp 2.4L I4 6-sp shiftable automatic FWD 50.6
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2011 2011 4dr SUV turbocharged 252hp 2.0L I4 9-sp shiftable automatic 4WD 10.87
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2011 2011 4dr SUV 301-hp 3.6L V6 6-sp shiftable automatic FWD 47.65
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2011 2011 4dr SUV 182-hp 2.4L I4 6-sp shiftable automatic AWD 42.73
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2011 2011 4dr SUV 182-hp 2.4L I4 6-sp shiftable automatic FWD 54
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2010 2010 4dr SUV turbocharged 252hp 2.0L I4 9-sp shiftable automatic 4WD 24.74
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2010 2010 4dr SUV 301-hp 3.6L V6 6-sp shiftable automatic FWD 49.51
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2010 2010 4dr SUV 182-hp 2.4L I4 6-sp shiftable automatic AWD 25.29
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2010 2010 4dr SUV 182-hp 2.4L I4 6-sp shiftable automatic FWD 30.78
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TrueDelta Reviews the Real Gas Mileage of the GMC Terrain

GMC Terrain Real Gas Mileage: Pros
YearComment
2018 Diesel engines burn far cleaner than they used to. But even the best retain disadvantages. Diesel fuel is nasty, greasy stuff, with a feel closer to motor oil than gasoline. Spill any on your hands, clothes, shoes, or car while filling up and it doesn't evaporate away like gas does. Also, the GMC Terrain's exhaust stinks, especially when its engine is cold. You might want to have the fresh air vent closed if you'll be reversing after starting up the vehicle. Given these disadvantages, a diesel better deliver strong EPA fuel economy ratings, and this four-wheel-drive GMC does: 28 mpg city, 38 mpg highway. (Dropping 4WD adds another mpg to the highway rating.) The Jaguar F-Pace diesel lags, with 26/33, as might be expected given its larger (2.0- vs. 1.6-liter), considerably more powerful (180- vs. 137-horsepower) engine. The RAV4 Hybrid is more economical in city driving, with an EPA rating of 34 mpg, but well behind in highway driving, with an EPA rating of 30. This is typical of diesel vs. hybrid comparisons, as hybrids are designed to recoup energy otherwise burned off by the brakes and thus deliver the largest bump in city driving. Even more than with most vehicles I test, the Terrain diesel's real-world fuel economy varied dramatically based on driving style and conditions. In the suburbs, trip computer averages ranged from 25 to 40 mpg, with most results around 30. On the highway, the trip computer reported low 40s in one direction, then low 30s in the other (on two different days, with no especially strong wind on either). In a suburban test drive of the Toyota RAV4 Hybrid, the highest trip computer average I could achieve was 38 mpg. Quite good for a compact crossover, and nearly even with the best suburban average I observed in the Terrain diesel. Compared to a Terrain with the standard gas engine, the diesel rates four mpg high in the city and ten mpg higher on the highway. Compared to the Terrain with its base gasoline engine, the Jeep Compass rates lower in the city (22 vs. 24 mpg) but higher on the highway (30 vs. 28 mpg), so gas-to-gas they're about even. see full GMC Terrain review
GMC Terrain Real Gas Mileage: Cons
YearComment
2010 On a positive note, the larger V6 earns the same EPA fuel economy ratings as the old one. On a less positive note, it also earns the same fuel economy ratings as the much larger, 4,850-pound Acadia: 16 city, 23 highway. In suburban driving the trip computer reported high teens to low twenties, a few mpg below lighter, more compact competitors. The four-cylinder gets 22/32 with FWD, 20/29 with AWD, but many owners have failed to approach these numbers in the real world. see full GMC Terrain review
 

What Our Members Are Saying about the Real Gas Mileage of the GMC Terrain

GMC Terrain Real Gas Mileage: Pros
YearBody/PowertrainComment
2012 4dr SUV 182-horsepower 2.4L I4
6-speed shiftable automatic AWD		 Although I have never seen this truck get the estimated fuel economy it boasts about in advertising, considering the shear mass of it and it's breadbox front end, with the I4 the fuel economy is very good considering it is a heavy little beast with AWD. I can average 700 kms. out of a tank of fuel no problem and on longer jaunts have seen it break 800 kms. If you are one of those people who complain about fuel consumption in this truck- you should have bought a Prius... because for what it is, it is exceptional on fuel. Try a different brand of fuel for a while, some brands have more additives and burn quicker. see full GMC Terrain review
2011 4dr SUV 182-horsepower 2.4L I4
6-speed shiftable automatic FWD		 Compared to our current vehicle, we estimated approx. $75/month in fuel savings. see full GMC Terrain review
2010 4dr SUV 182-horsepower 2.4L I4
6-speed shiftable automatic AWD		 Main reason for purchasing was we wanted a vehicle that was AWD, could tow small loads and would get reasonable fule mileage. see full GMC Terrain review
2010 4dr SUV 182-horsepower 2.4L I4
6-speed shiftable automatic FWD		 Fuel economy was a big factor in purchase decision. Real world mileage not really close to 32 epa rating, but still pretty decent for a big, comfy station wagon-esque vehicle. see full GMC Terrain review
2010 4dr SUV 182-horsepower 2.4L I4
6-speed shiftable automatic AWD		 29 highway is good for a vehicle of this size see full GMC Terrain review
2010 4dr SUV 182-horsepower 2.4L I4
6-speed shiftable automatic FWD		 awesome, average is 7.5 liters/100 kms see full GMC Terrain review
GMC Terrain Real Gas Mileage: Cons
YearBody/PowertrainComment
2015 4dr SUV 301-horsepower 3.6L V6
6-speed shiftable automatic AWD		 Fuel economy, for a vehicle over 4,000lbs, and a 300hp V6 engine, is going to be low. But at between 15-18mpg, for suburban driving, it seems a bit low. I wanted to the V6 so it would not struggle, and I did that knowing the MPG's were not great, but I hoped it would be better on the highway. What I found most disappointing, was that with the V6, you don't get an "economy" switch. The 4 cylinder version does, but not the V6. Why does this matter? Because with a V6, with much more power than a 4 cylinder, using economy mode would not feel bad. On the Terrain, with the 4 cylinder you are starting with less, so taking away from less isn't alwyas good. But taking away from the V6, would not be as impacting. see full GMC Terrain review
2011 4dr SUV 182-horsepower 2.4L I4
6-speed shiftable automatic AWD		 doesnt get near what they say it will get. worse then the last 2.4 I-4 engine I had.(2006 HHR) see full GMC Terrain review
2011 4dr SUV 264-horsepower 3.0L V6
6-speed shiftable automatic AWD		 We are getting about 14 miles to the gallon. Worst 3.0 litter i have ever owned see full GMC Terrain review
2011 4dr SUV 182-horsepower 2.4L I4
6-speed shiftable automatic FWD		 You get 32 mph/gal ONLY if you set the cruze and stay at or below 55mph. see full GMC Terrain review
2010 4dr SUV 182-horsepower 2.4L I4
6-speed shiftable automatic FWD		 Vehicle doesn't come close to 32 mpg highway spec. Average is 26-27 mpg. Big disappointment given the marketing of the vehicle. see full GMC Terrain review
2010 4dr SUV 182-horsepower 2.4L I4
6-speed shiftable automatic AWD		 First trip fuel mileage 618 km on 65 liters of fuel. Terrian has 30000 KM on it. Trip was driven at 100 KM very little idle time. see full GMC Terrain review
2010 4dr SUV 264-horsepower 3.0L V6
6-speed shiftable automatic FWD		 Have less than 500 miles on vehicle and just got 24 mpg on highway with cruise set at 68. see full GMC Terrain review
 

GMC Terrain Gas Mileage (km/L)

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 km/L based on how and where you drive a car.