The 2018 GMC Terrain FWD with the 1.5L 4-cylinder engine gets 28 MPG combined, a figure suited to its job as a comfortable and practical compact SUV. Not many buyers are looking for extreme efficiency in this segment, but the Terrain delivers respectable numbers without giving up the features, styling, and elevated ride height that shoppers value.

City and highway performance

While the combined figure paints a general picture, understanding the city and highway ratings provides more specific insight. The 2018 Terrain achieves 26 MPG in the city, which is acceptable for stop-and-go driving and dense urban environments. The automatic start/stop system helps by shutting off the engine at red lights and during brief pauses in traffic. On the open road, the Terrain manages 30 MPG on the highway. This figure makes it suitable for longer commutes and road trips, proving it’s capable of covering distances without excessive fuel consumption. The 9-speed automatic transmission plays a critical role in achieving these numbers, keeping the engine in its optimal rev range for both performance and fuel economy.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2018 GMC Terrain FWD 1.5L to be $1,550. This calculation is based on driving 15,000 miles per year and using national average fuel prices. Individual fuel costs will vary depending on driving habits, local fuel prices, and the percentage of city versus highway driving. However, the $1,550 figure provides a useful benchmark for comparing the Terrain’s running costs to other vehicles in its class. Families considering the Terrain’s practicality and spaciousness will weigh this against alternatives.

Real-world expectations

EPA estimates provide a standardized baseline, but real-world fuel economy often differs. Driving style, traffic conditions, and even tire pressure can significantly impact fuel consumption. Under normal driving conditions, you can expect the 2018 Terrain to deliver numbers close to the EPA estimates. Aggressive acceleration and frequent hard braking will decrease fuel economy, while a consistent and gentle driving style will help to maximize it. Some drivers who meticulously track their fuel consumption have reported numbers slightly above or below the official ratings, proving that individual habits are a key factor.

How it compares

The compact SUV segment is packed with competitors, all vying for the attention of buyers looking for less gas. The Honda CR-V with its 1.5L turbo engine achieves 30 MPG combined in its FWD configuration, making it a slightly more efficient option than the Terrain. The Toyota RAV4, another popular choice, gets around 26 MPG combined in its non-hybrid form, putting it slightly behind the Terrain. These figures matter to buyers who prioritize fuel efficiency above all else. Other considerations like interior space, technology features, and brand loyalty often play a deciding role. For those prioritizing fuel costs alongside other factors, all Gmc fuel economy data makes for great research.

Comparisons with the Mazda CX-5 are also relevant. The CX-5 often appeals to drivers seeking a more engaging driving experience, and its fuel economy with the base engine is comparable to the Terrain, around 28 MPG combined. Buyers often cross-shop these two because of their similar size and price point, meaning even slight fuel-economy advantages can sway purchase decisions. Comparing is made easier with the knowledge of TERRAIN MPG across all years.

Tips to maximize efficiency

Maintaining proper tire inflation is critical for maximizing fuel economy. Check your tire pressure regularly and inflate them to the recommended pressure listed on the driver’s side doorjamb. Under-inflated tires increase rolling resistance, which forces the engine to work harder and consume more fuel.

Avoid aggressive driving habits such as rapid acceleration and hard braking. These actions consume significantly more fuel than gradual acceleration and gentle braking. Anticipate traffic flow and maintain a steady speed whenever possible. Using cruise control on the highway can also help maintain a consistent speed and improve fuel economy.

Reduce unnecessary weight in the vehicle. Extra weight puts a strain on the engine and reduces fuel efficiency. Remove any unnecessary items from the trunk or cargo area. Even small weight reductions can add up over time and contribute to better fuel economy.

Take advantage of the Terrain’s automatic start/stop system. This feature automatically shuts off the engine when the vehicle comes to a complete stop, saving fuel. While some drivers find it intrusive, it can make a measurable difference, especially in city driving. The fuel savings are most noticeable over time.