The 2018 GMC Terrain AWD, equipped with the 2.0L turbocharged 4-cylinder engine, gets an estimated 23 MPG combined. This fuel economy positions the Terrain reasonably well, even if it isn’t at the top of its class. Its primary goal is to offer a comfortable and capable small SUV experience, bought mainly by people who prioritize features and styling over maximum fuel efficiency.

City and highway performance

The EPA estimates for the 2018 Terrain AWD with the 2.0L engine are 21 MPG in the city and 26 MPG on the highway. The 21 MPG city rating reflects that the engine needs to work harder in stop-and-go traffic. It’s a reasonable figure for a turbocharged engine in an all-wheel-drive vehicle. The 26 MPG highway figure is achievable on long, steady trips, especially when using cruise control carefully. The 9-speed automatic transmission helps keep the engine in its most efficient range at highway speeds which contributes to its better rating.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2018 GMC Terrain AWD 2.0L at $2,500. This is calculated based on driving 15,000 miles per year and using the national average fuel price. Individual fuel costs will vary depending on driving habits, local fuel prices, and the amount of city versus highway driving, however, the $2,500 figure provides a standard for comparing the Terrain’s fuel costs to others in its class. Prospective buyers should consider this number when calculating the total cost of ownership.

Real-world expectations

While the EPA provides standard testing, real-world fuel economy often differs from the official numbers. A driver who frequently accelerates quickly or spends most of their time in heavy city traffic is likely to see numbers below the EPA estimates. Similarly, those who consistently drive long distances on the highway, maintain a steady pace, and drive efficiently can often achieve or even exceed the 26 MPG highway rating. You can expect to see the combined MPG change depending on your driving style and conditions. For a solid overview of TERRAIN MPG across all years, be sure to check out our resources.

How it compares

The Terrain’s fuel economy places it in the middle of its class. For example, the Honda CR-V AWD achieves 27 MPG combined, while the Toyota RAV4 AWD achieves 25 MPG combined. The Nissan Rogue AWD boasts 28 MPG Combined. These are all slightly better than the Terrain. On the other hand, some competitors, such as the Jeep Cherokee 4×4 with the 3.2L V6, get a lower 22 MPG Combined. These comparisons matter to shoppers who may trade a small amount of fuel efficiency for the Terrain’s distinctive styling and available technology. Buyers prioritizing efficiency may prefer the RAV4 Hybrid with its higher fuel economy.

Tips to maximize efficiency

The 2.0L turbocharged engine works best with smooth and gradual acceleration. Avoid abrupt starts and stops, as these use more fuel. Anticipate traffic flow and maintain a consistent speed whenever possible to minimize fuel consumption. Reduce the weight in the vehicle. Remove any unnecessary items, as added weight decreases fuel economy and keep the tires properly inflated to the recommended pressure. Underinflated tires increase rolling resistance which reduces fuel efficiency. The correct tire pressure is usually found on a sticker inside the driver’s side doorjamb or in the owner’s manual.

The 9-speed automatic transmission keeps the engine operating in its most efficient range. Let the transmission do its job by avoiding aggressive acceleration and staying out of manual shift modes unless necessary. When possible, choose routes that minimize stop-and-go traffic, as constant acceleration and braking significantly reduce fuel economy. Using cruise control on the highway can help maintain a consistent speed and reduce fuel consumption during long trips. Consider checking all Gmc fuel economy data before making your purchase.

Regular maintenance is important for maximizing fuel efficiency. Make sure that the engine is properly tuned and that all scheduled maintenance is completed on time, including changing the oil and air filter according to the manufacturer’s recommendations. A clean air filter allows the engine to breathe more easily, improving fuel efficiency and check the alignment of the wheels periodically, since misaligned wheels can increase rolling resistance, leading to decreased fuel economy.

Consider using the Terrain’s available Eco mode. This mode adjusts the engine and transmission settings to prioritize fuel efficiency over performance. While it may reduce throttle response and acceleration, it can help improve your overall fuel economy. Be mindful of auxiliary power consumption. Heavy use of air conditioning, heating, and other electrical accessories can put a strain on the engine and reduce fuel efficiency, so only use these features when needed to get the best MPG.

The 2018 GMC Terrain AWD 2.0L delivers fine fuel economy for its class, balancing capability and features with reasonable running costs. The EPA figure is only the start, your driving habits will greatly change your MPG results. Terrain buyers understand that better MPG can be found elsewhere, they choose this vehicle for the blend of style, features, and all-weather handling it provides.