16 combined MPG firmly places the 2025 GMC Canyon AT4X AEV 4WD 2.7L 4-cyl in a category where fuel efficiency takes a definitive backseat to raw capability and uncompromised off-road prowess. This isn’t a truck for the casual suburban dweller, it’s a specialized machine for enthusiasts who demand the absolute peak of factory-built off-road performance, a vehicle designed to conquer trails, not optimize long-haul cruising. The buyer committing to the AT4X AEV understands that the massive 35-inch Goodyear Wrangler Territory MT tires, the lifted suspension, the boron steel skid plates, and the extensive AEV equipment come with a trade-off, and that trade-off is often found at the gas pump. For this demographic, the 16 MPG isn’t a deterrent, it’s an expected operational cost for a truck that defines the very upper echelon of what a mid-size pickup can do straight from the showroom floor.

City and highway performance

The EPA rates the 2025 GMC Canyon AT4X AEV at a uniform 16 MPG across both city and highway cycles. This consistent figure reflects the vehicle’s heavily optimized off-road setup. In the city, the large, aggressive mud-terrain tires, the substantial weight added by AEV’s extensive modifications, and the truck’s overall strong design contribute significantly to fuel consumption. Stop-and-go traffic demands more power to get this much mass moving, and those deep tire treads create considerable rolling resistance. On the highway, the situation doesn’t improve dramatically because the very same elements, the tires, the elevated ride height, and the resulting aerodynamic drag, work against sustained efficiency at higher speeds. Wind resistance becomes a major factor, and the engine, while potent, is tasked with maintaining momentum against constant friction and drag. The 2.7L turbocharged four-cylinder engine, paired with the 8-speed automatic transmission, is powerful, producing 310 horsepower and a massive 430 lb-ft of torque. It moves the AEV package with authority, but this power is primarily geared towards tackling challenging terrain, not sipping fuel on a cross-country sprint.

Annual fuel cost

The EPA estimates an annual fuel cost of $2,750 for the 2025 GMC Canyon AT4X AEV 4WD 2.7L 4-cyl. This figure is derived from a standard calculation assuming 15,000 miles of driving per year, split 55% city and 45% highway, and using national average fuel prices, which are updated periodically. It provides a straightforward measure of what an average driver might expect to spend on fuel over a year with this particular vehicle. For the AT4X AEV owner, this $2,750 cost is typically viewed as part and parcel of owning such a specialized, high-performance off-road rig. It’s a pragmatic acceptance that a truck built for extreme trails and equipped with top-tier aftermarket-grade components will inherently consume more fuel than a standard street-oriented pickup or SUV. The investment in capability is often far more significant than the ongoing fuel expense for individuals who choose this specific, highly capable trim.

Real-world expectations

In real-world driving conditions, proprietors of the 2025 GMC Canyon AT4X AEV 4WD 2.7L 4-cyl should anticipate figures closely mirroring the EPA’s 16 MPG combined rating, and potentially even lower when fully exploiting its intended mission. Hard off-roading, especially traversing mud, sand, or steep inclines in low-range, will significantly diminish fuel economy. Running the vehicle with a heavily loaded bed, towing, or driving consistently at higher speeds on the highway with those aggressive tires will also pull numbers down. While the 2.7L turbo engine is capable, its power delivery for such a demanding setup means it’s working hard. Drivers primarily using the truck for daily commuting in traffic, or those who rarely venture beyond paved roads, might find the fuel consumption a persistent reminder of the truck’s purpose-built design. However, those who regularly engage in overlanding, technical trail driving, or simply appreciate the uncompromising aesthetic and capability will find the fuel consumption a small price to pay for unparalleled adventure readiness. The character of this truck demands a certain commitment, and that commitment extends to its operational costs.

How it compares

When evaluating the 2025 GMC Canyon AT4X AEV’s 16 MPG, context is everything, particularly amongst its true rivals. The standard GMC Canyon AT4X, without the AEV enhancements, still manages 17 MPG combined, a slight improvement owed to less rotational mass and aerodynamic drag. The closely related all Gmc fuel economy data Chevrolet Colorado ZR2 Bison, which shares the same engine and a similar top-tier off-road ethos but with its own AEV tweaks, also registers 16 MPG combined. This parity underscores the impact of these extreme off-road packages. Looking at other mid-size contenders, the Toyota Tacoma TRD Pro, with its 2.4L i-FORCE MAX hybrid powertrain, achieves a more competitive 22 MPG combined, though it sacrifices some raw power and heavy-duty overlanding components compared to the Canyon AEV. The Ranger Raptor, another formidable mid-size off-roader, comes in at 17 MPG combined from its more powerful 3.0L twin-turbo V6. Full-size off-roaders like the Ram 1500 TRX exist in another universe entirely, often dipping into single-digit MPG figures when driven aggressively. For the CANYON MPG across all years, the AT4X AEV is competing not for segment-leading efficiency, but for segment-leading capability, and its fuel economy figures reflect that uncompromising intent. Buyers choose this vehicle because it’s arguably the most capable mid-size truck on the market, not because it sips fuel.

Tips to maximize efficiency

Navigating the terrain in a 2025 GMC Canyon AT4X AEV means accepting its unique characteristics, but there are still ways to nudge its fuel economy slightly upwards. Given the substantial 35-inch mud-terrain tires, maintaining correct tire pressure is critical. Under-inflated tires significantly increase rolling resistance and generate more heat, directly impacting fuel consumption and tire wear. Checking them regularly, especially before and after off-road excursions, ensures optimal performance.

The truck’s powerful 2.7L turbocharged engine thrives on smooth, consistent throttle inputs. Avoid aggressive acceleration and abrupt braking, particularly in city driving or when exiting off-road sections onto paved roads. Modulating the accelerator gently allows the turbo to spool up efficiently and the 8-speed automatic transmission to find its optimal gear, preventing unnecessary fuel dumps into the combustion chambers.

For stretches of highway driving where conditions permit, engaging the cruise control can help maintain a steady speed and optimize fuel delivery. While the AT4X AEV isn’t aerodynamically optimized for highway cruising, consistency beats constant speed fluctuations that force the engine to work harder to regain momentum. This is especially true at lower highway speeds where wind resistance is slightly less of an overwhelming factor.

Minimizing unnecessary weight and drag can also contribute to marginal improvements. While the AEV package inherently adds weight, removing any unused rooftop tents, recovery boards, or heavy tools when not specifically needed for an upcoming adventure can make a small difference. Even small increases in weight require the engine to expend more energy, regardless of whether you’re off-road or on the pavement.