The 2020 GMC Terrain FWD 1.5L gets 27 MPG combined, a reasonable fuel economy figure. This reflects a balance: offering enough space and utility for small families or empty-nesters, while keeping running costs reasonable. This isn’t a performance SUV, and it’s not marketed as one. It’s a comfortable, practical vehicle for everyday driving, and the fuel economy makes that practicality even more appealing to its target demographic, who likely prioritize value and reliability over driving excitement.

City and highway performance

The EPA estimates for the 2020 GMC Terrain FWD 1.5L break down to 26 MPG in the city and 30 MPG on the highway. This disparity, while seemingly small, reflects the engine’s characteristics and the transmission’s tuning. The 9-speed automatic transmission is calibrated to maximize fuel efficiency at higher speeds on the open road, allowing the engine to operate at lower RPMs. In city driving, with frequent stops and starts, the smaller 1.5L engine works harder, diminishing the fuel economy advantage. Realistically, drivers who spend most of their time commuting in urban areas might see figures closer to the city rating, while those who frequently take highway trips will likely achieve mileage closer to, or even slightly exceeding, the 30 MPG highway estimate.

Annual fuel cost

According to the EPA, the annual fuel cost for the 2020 GMC Terrain FWD 1.5L is estimated at $1,600. This figure is based on driving 15,000 miles per year, with a fuel price reflecting the national average for regular unleaded gasoline (when the calculation was made). It’s a useful benchmark for comparing running costs against other vehicles in its class. Remember fuel costs will vary depending on individual driving habits, the type of driving, and local prices.

Real-world expectations

EPA estimates provide a solid baseline, but real-world fuel economy often differs due to a variety of factors. Driving style is a key element. Aggressive acceleration and hard braking will impact fuel consumption. Terrain also plays a role. Hilly areas will generally lead to lower MPG than flat, open roads. Factors like tire pressure, vehicle maintenance, and the use of accessories, such as air conditioning, can influence the numbers you see on your Terrain’s fuel economy display.

How it compares

The 2020 GMC Terrain’s fuel economy allows it to compete effectively within the compact SUV segment, though some rivals hold a slight advantage. For instance, the Toyota RAV4 LE FWD typically achieves around 30 MPG combined, making it a more frugal choice on paper. Similarly, the Honda CR-V LX FWD delivers approximately 28 MPG combined. The Nissan Rogue S FWD, another popular contender, closely matches the Terrain’s 27 MPG. While the differences might seem minimal at first glance, over the course of a year, they can translate into noticeable savings at the pump. However, the decision isn’t solely based on fuel economy, as factors like styling, features, and overall driving experience also come into play for buyers considering the Terrain.

Tips to maximize efficiency

Maintaining proper tire pressure is important. Underinflated tires increase rolling resistance, forcing the engine to work harder and consume more fuel. Consult the sticker on your driver’s side doorjamb for the recommended tire pressure for your 2020 GMC Terrain. Use a reliable tire pressure gauge and check your tires regularly, especially with changes in temperature.

Avoid aggressive driving habits such as rapid acceleration and hard braking. Smooth, gradual acceleration and anticipating traffic flow can significantly improve your fuel economy. Treat the gas pedal gently and maintain a steady speed whenever possible. Using cruise control on the highway can also help to maintain a consistent speed and optimize fuel consumption.

Reduce unnecessary weight in your vehicle. Extra cargo adds to the load the engine has to carry, diminishing fuel efficiency. Remove any items from your Terrain that you don’t regularly need, including heavy items in the trunk or backseat. Reducing weight, even by a small amount, contributes to improved MPG.

Properly maintain your 2020 GMC Terrain according to the manufacturer’s recommendations. Regular oil changes, air filter replacements, and spark plug inspections ensure that your engine is running efficiently. A well-maintained engine consumes less fuel and emits fewer pollutants. Consult all GMC fuel economy data to see model comparisons by year. A well-maintained vehicle not only uses less fuel, but also extends the life of your Terrain.

Be mindful of idling. Idling for extended periods consumes fuel without covering any distance. If you anticipate being stopped for more than a brief moment, turn off the engine. Modern engines are designed to restart quickly and efficiently, and the fuel savings from reducing idling can add up over time. Compare this to the TERRAIN MPG across all years for more context.