The 2016 GMC Terrain AWD with the 3.6L V6 engine gets 18 MPG combined. No one buys this Terrain expecting Prius-like efficiency. People choose this vehicle for its comfortable interior, available V6 power that’s well-suited for hauling family and gear, and all-wheel-drive confidence in bad weather. They understand that these benefits come with a fuel economy penalty, and for many, the trade-off is acceptable for a reliable and reasonably priced SUV.

City and highway performance

The EPA estimates that the 2016 GMC Terrain AWD 3.6L achieves 16 MPG in the city and 23 MPG on the highway. The relatively low city MPG reflects the engine’s size and the vehicle’s weight, requiring more fuel to accelerate from stops and navigate urban traffic. The highway figure, while not stellar, is more respectable. It speaks to the engine’s ability to cruise efficiently at steady speeds, benefiting from the 6-speed automatic transmission that helps keep engine RPMs lower.

Annual fuel cost

The EPA calculates the annual fuel cost for the 2016 GMC Terrain AWD 3.6L at $2,450. This figure is based on driving 15,000 miles per year, using a national average fuel price that changes based on current market data. Keeping the annual cost in mind is important for owners making a long-term financial plan. As fuel prices rise or fall, this number could significantly impact the overall cost of owning and operating this SUV, in addition to costs like insurance, maintenance, and registration.

Real-world expectations

While the EPA provides a standardized estimate, real-world fuel economy will always vary depending on driving habits, road conditions, and even the weather. Aggressive acceleration, frequent braking, and extended idling can all negatively impact fuel efficiency. Those located in hilly or mountainous areas may also see lower MPG numbers than someone who drives primarily on flat terrain. Similarly, cold weather can reduce fuel economy, while well-maintained vehicles are more efficient overall.

How it compares

Compared to other SUVs in its class, the 2016 GMC Terrain AWD 3.6L’s fuel economy is on the lower end. For example, the Honda CR-V with AWD achieves around 28 MPG combined, while the Toyota RAV4 AWD gets about 25 MPG combined. Even a larger mid-size SUV like the Nissan Pathfinder (with its V6) comes in around 22 MPG combined for some model years. Those considering the Terrain and prioritizing fuel efficiency might also consider newer models of the Terrain itself; later years with smaller turbocharged engines offer better gas mileage, though possibly less towing capacity.

Tips to maximize efficiency

Gentle acceleration and braking can make a noticeable difference. Avoid “jackrabbit” starts and try to maintain a steady speed whenever possible. The Terrain benefits when you avoid sudden, forceful inputs that make the engine work harder. Anticipating traffic flow and slowing down gradually can significantly improve your MPG.

Keep your tires properly inflated. Underinflated tires increase rolling resistance, which makes the engine work harder and burns more fuel. Check your tire pressure regularly and inflate them to the recommended PSI as listed on the driver’s side door jamb, which ensures a safer and more efficient ride.

Reduce unnecessary weight. Carrying excessive cargo in your Terrain can negatively impact fuel economy. Remove items you don’t need on a daily basis, such as sporting equipment or tools to lighten the load and improve MPG. Extra weight requires more energy to accelerate and maintain speed.

Use cruise control on the highway. Maintaining a constant speed on the highway helps optimize fuel efficiency. Cruise control minimizes variations in speed, preventing unnecessary acceleration and braking. Use this feature on longer trips and notice the difference in your TERRAIN MPG across all years.

Consider front-wheel drive models for improved fuel economy. If all-wheel drive is not a necessity for your typical driving conditions, consider the front-wheel drive version of the Terrain. Removing the added weight and complexity of the AWD system can improve fuel economy by a couple of MPG. Check the all Gmc fuel economy data to see if there are significant MPG differences between the Terrain FWD and AWD models.