25 MPG Combined makes the 2025 GMC Terrain AWD 1.5L 4-cylinder a pragmatic choice for those seeking a compact SUV with all-weather confidence and a dose of premium refinement without punishing the wallet at the pump. This vehicle is designed to be a dependable, comfortable partner for daily commutes, family errands, and the occasional weekend adventure. Its efficiency numbers reflect a powertrain engineered for balanced performance, prioritizing accessibility and ease of ownership in a segment notorious for its diverse offerings. For the buyer who values a sensible blend of capability and operational cost over outright performance, the Terrain’s fuel economy sweet spot is clear.

City and highway performance

The EPA rates the 2025 Terrain AWD 1.5L at 24 MPG in the city and 28 MPG on the highway. These figures indicate its intended use. The 1.5-liter turbocharged four-cylinder engine, paired with an 8-speed automatic transmission, is optimized for efficient cruising and responsive, if not exhilarating, around-town acceleration. In urban environments, where stop-and-go traffic is the norm, the 24 MPG city rating holds its own, benefiting from the immediate torque delivery of the turbocharger and the well-chosen gear ratios of the transmission. It avoids the lag often associated with larger, naturally aspirated engines trying to move a substantial compact SUV. On the open road, the 28 MPG highway figure is respectable, allowing for decent range between fuel stops, a real advantage for longer road trips or for those with extended commutes. The powertrain generally operates at lower RPMs at highway speeds, contributing to both fuel efficiency and a quieter cabin environment. This powertrain quietly and competently gets the job done, mile after economical mile.

Annual fuel cost

The EPA estimates that the 2025 GMC Terrain AWD 1.5L 4-cylinder will incur an annual fuel cost of $1,750. This figure comes from an assumption of 15,000 miles driven per year, split between city and highway driving, and using national average fuel prices, which are subject to fluctuation. This estimate provides a strong financial anchor for potential buyers. For a compact SUV with all-wheel drive, a feature that often adds complexity and weight, thereby impacting efficiency, an annual fuel spend under the $2,000 mark is attractive. It positions the Terrain as a cost-effective daily driver, a vehicle that offers the practicality and perceived safety of an SUV without significantly impacting the household budget through excessive fuel expenses. The $1,750 annual fuel cost is a tangible number that directly speaks to the practicality and inherent value of the 2025 Terrain for its target demographic, families and individuals prioritizing sensible running costs alongside modern features and utility. You can find all GMC fuel economy data on FuelEconomyHub.com.

Real-world expectations

While the EPA numbers provide a solid benchmark, real-world fuel economy for the 2025 Terrain AWD 1.5L will, as always, depend on a variety of factors. Aggressive driving, excessive speeding, heavy loads, and frequent use of accessories like air conditioning can all lead to deviations from the official figures. However, for the typical Terrain buyer, someone who drives conscientiously, values comfort and practicality, and isn’t prone to lead-footed acceleration, the 25 MPG combined is genuinely achievable. This vehicle’s character encourages a smoother, more relaxed driving style, which naturally lends itself to better fuel economy. Drivers in colder climates might see a slight dip due to longer warm-up times and increased engine load from accessories. Conversely, those primarily using the Terrain for highway cruising on relatively flat terrain can expect to meet or even slightly exceed the 28 MPG highway rating. The Terrain’s mission is to be a low-stress, high-utility vehicle, and its actual fuel consumption tends to align with that ethos when driven accordingly. For more details on this model, check out the Terrain MPG across all years.

How it compares

The 2025 GMC Terrain AWD 1.5L 4-cylinder is a player in one of the most competitive segments. Its 25 MPG combined rating puts it squarely in the middle of a very crowded pack. Consider direct competitors like the Honda CR-V AWD, which offers a 1.5-liter turbo engine achieving 29 MPG combined in its EX-L trim. The Toyota RAV4 AWD, with its 2.5-liter naturally aspirated engine, manages 30 MPG combined. Even the Mazda CX-5 AWD, with its more premium aspirations and 2.5-liter engine, delivers 26 MPG combined. The Terrain justifies its figures with its slightly more substantial feel, its more traditional SUV styling, and a cabin that, for many, feels a notch above some of its more utilitarian rivals. The Terrain’s buyer understands they aren’t purchasing the absolute efficiency leader, but rather a vehicle that balances practical capability and a certain level of GMC-specific rugged professionalism. It offers a distinct aesthetic and a character that differentiates it from the slightly more anonymous competition, and for that, a few MPG points are a worthwhile trade-off to its specific audience.

Tips to maximize efficiency

Maintaining proper tire pressure is one of the easiest and most effective ways to ensure your Terrain operates at peak efficiency. Regularly consult your owner’s manual or the sticker on your driver’s side door jamb for the recommended pressure and check your tires weekly or bi-weekly, especially as temperatures change.

Smooth acceleration and gentle braking significantly impact fuel economy. The 1.5L turbo engine responds well to a measured throttle input, avoid jackrabbit starts and anticipate traffic flow to minimize unnecessary braking and re-acceleration.

Regular maintenance, including timely oil changes, air filter replacements, and spark plug checks, ensures the engine runs as cleanly and efficiently as designed. A well-maintained engine uses less fuel and produces fewer emissions, keeping your Terrain running optimally.

Minimize excess weight in your vehicle. Remove unnecessary items from the trunk or cabin, and if you have a roof rack, take it off when not in use, as it creates significant aerodynamic drag.

Use the Terrain’s cruise control on highway stretches. Maintaining a consistent speed prevents unnecessary acceleration and deceleration, allowing the 8-speed automatic transmission to operate in its most efficient gears for extended periods.