20 MPG combined is what you can expect for 2016 GMC Terrain FWD owners with the 3.6L V6. This isn’t an efficient number, and it’s not designed to be. The Terrain, especially with this engine, is for those who want smooth power and confident highway merging instead of saving every drop of fuel. It’s a practical choice for drivers who often haul passengers and cargo, appreciating the V6’s readily available torque.

City and highway performance

The EPA estimates are 17 MPG in the city and 24 MPG on the highway for this configuration. The city figure shows the engine’s thirst during frequent stop-and-go driving, a common problem for larger engines. However, the 24 MPG highway rating shows how the engine can cruise efficiently at steady speeds, helped by the smooth-shifting six-speed automatic transmission. Long highway drives will give Terrain owners the best mileage.

Annual fuel cost

The EPA estimates that the annual fuel cost for the 2016 GMC Terrain FWD with the 3.6L V6 is $2,200. This is based on driving 15,000 miles per year and using national average fuel prices. It’s a useful benchmark, but individual costs will change depending on driving habits, local fuel prices, and fuel type. Think about this cost when deciding if the V6’s extra power is worth the fuel cost.

Real-world expectations

While the EPA gives a standard estimate, real-world fuel economy can change a lot. Hard driving, frequent short trips, and heavy loads will all lower the numbers. But careful throttle control, consistent speeds, and good maintenance can help Terrain owners get closer to the EPA estimates. Checking tire inflation and avoiding excessive idling are easy steps that can help. For drivers who want to save fuel, compare all Gmc fuel economy data to other options in the lineup.

How it compares

The 2016 Terrain’s fuel economy isn’t class-leading. The four-cylinder FWD Terrain from the same year gets an EPA estimated 26 MPG highway, making it a better choice for those who don’t need the extra power. A 2016 Toyota RAV4 FWD, for example, delivers an EPA-estimated 24 MPG combined, while a Subaru Forester offers a similar number with standard all-wheel drive. Even the V6-powered Honda Pilot, despite being larger with three rows of seating, manages a similar 22 MPG combined in FWD form. These comparisons matter to buyers weighing the balance between performance and fuel efficiency, which is important within the crossover segment. Checking TERRAIN MPG across all years can help give you a better idea.

Tips to maximize efficiency

The Terrain’s six-speed automatic transmission shifts smoothly, but you can make it even better. Avoid hard acceleration that makes the transmission downshift often. Gentle throttle will keep the engine in its best range.

The Terrain’s V6 responds well, and it’s easy to let the RPMs get high. Watch your tachometer and try to keep the engine speed below 2,500 RPM during normal driving. This can change fuel consumption, especially in the city.

Consider using cruise control on the highway, especially on flat ground. Keeping a steady speed lowers acceleration and deceleration, saving fuel. Watch for terrain changes and anticipate them to avoid downshifts.

Regular maintenance is important for good fuel efficiency. Keep your tires inflated, your engine oil clean, and your air filter replaced as recommended. Not doing these tasks can hurt fuel economy over time.

Plan your routes carefully, especially in cities. Avoid traffic and peak hours if you can. Choosing less busy routes, even if longer, can often help fuel economy with fewer stops.