The 2021 GMC Terrain AWD with its 1.5L 4-cylinder engine gets 26 MPG combined, which is a reasonable figure for a small SUV designed for comfort and all-weather confidence. This isn’t going to win any hypermiling competitions. Consider who buys a Terrain: a young professional or a small family needing a versatile vehicle that can handle snowy commutes or weekend trips to the mountains. For them, the AWD system and the Terrain’s composed ride are priorities. They’re likely willing to accept average fuel consumption as part of that.

City and highway performance

The EPA estimates for the 2021 GMC Terrain AWD are 25 MPG in the city and 28 MPG on the highway. The small difference between city and highway figures shows that the Terrain’s 9-speed automatic transmission is well-tuned to keep the engine in its best RPM range. This helps whether you’re navigating stop-and-go traffic or cruising on the open road. Stop-start functionality also helps save fuel in city driving. Drivers should note that these are EPA estimates, so real-world conditions like aggressive acceleration, heavy loads, and extreme temperatures can affect these numbers.

Annual fuel cost

The EPA estimates the annual fuel cost for the 2021 GMC Terrain AWD is $1,700. This is based on driving 15,000 miles per year and using national average fuel prices. Your actual fuel costs may vary depending on how many miles you drive annually and the price of gasoline in your area. While $1,700 might seem like a substantial amount, consider it with overall vehicle ownership costs, including insurance, maintenance, and depreciation. The TERRAIN MPG across all years is a relevant factor in that cost.

Real-world expectations

The EPA provides a standardized estimate, but consider real-world variables. Terrain owners often report fuel consumption figures that vary, but generally remain close to the official EPA estimates if driven moderately. A factor is driving style, terrain, and climate conditions. Expect lower numbers if you frequently engage the AWD system in demanding conditions, tow trailers, or drive predominantly in hilly areas. Gentle driving on flat highways might yield slightly better-than-EPA results. Regular maintenance, including properly inflated tires and timely oil changes, is essential for maximizing fuel efficiency.

How it compares

Compared to its competitors, the 2021 GMC Terrain AWD holds its own, but doesn’t necessarily lead in fuel consumption. The Honda CR-V AWD achieves a combined 29 MPG. The Toyota RAV4 AWD gets an EPA-estimated 28 MPG combined. The Mazda CX-5 AWD achieves 26 MPG combined, making it a direct competitor to the Terrain in fuel consumption. The Subaru Forester, another popular AWD option, also manages 29 MPG combined. For someone prioritizing every last mile per gallon, these alternatives might seem tempting. The Terrain distinguishes itself with its premium interior appointments and distinctive GMC styling. Some buyers value these more than marginal fuel savings. It is important to consider all Gmc fuel economy data when buying your next vehicle.

Tips to maximize efficiency

Avoid aggressive acceleration. The Terrain’s 1.5L engine is responsive enough for everyday driving, but stomping on the accelerator consumes extra fuel. Gradual acceleration will significantly improve your MPG, especially in city driving. Ease onto the accelerator at a moderate pace.

Monitor your tire pressure. Underinflated tires increase rolling resistance, which reduces fuel consumption. Check your tire pressure regularly and inflate them to the recommended level. You’ll find this level on a sticker inside the driver’s side doorjamb. Even a few PSI below the recommended pressure can have a noticeable impact.

Reduce unnecessary weight. Carrying extra cargo in your Terrain adds weight. This forces the engine to work harder and burn more fuel. Remove any items you don’t need, such as sporting equipment or tools, especially if you’re planning a long trip.

Use cruise control on the highway. Maintaining a constant speed on the highway helps optimize fuel efficiency. Cruise control prevents unnecessary acceleration and deceleration, which can waste fuel. Be mindful of using cruise control in hilly areas, as it may downshift aggressively to maintain speed.

Consider using a fuel additive. While not strictly necessary, some fuel additives can help clean fuel injectors and improve combustion, potentially leading to slightly better fuel consumption. Research reputable brands and follow the instructions carefully. Consult your owner’s manual before adding anything to your fuel tank.