16 MPG combined is a figure that defines the 2026 Chevrolet Colorado ZR2 Bison 4WD 2.7L 4-cyl. This truck isn’t for the hypermiler or the daily commuter focused on fuel consumption. This is a special, hardcore off-road machine, built to handle tough terrain, and its fuel economy shows that dedication to rugged capability. Buyers of the ZR2 Bison want extreme off-road prowess, durability, and the ability to get far off the beaten path – often miles past where other trucks can go. The 16 MPG is a direct result of its beefed-up suspension, heavy-duty underbody protection, wider stance, and aggressive all-terrain tires, all necessary components for its purpose.

City and Highway Performance

The 2026 Colorado ZR2 Bison offers an EPA-rated 16 MPG whether you’re driving in the city or on the interstate. This consistent figure reflects the truck’s fundamental design. In city driving, the 2.7L 4-cylinder engine, paired with its 8-speed automatic transmission, works to overcome the significant rolling resistance of the large, knobby tires and the inertia of its considerable curb weight. Its substantial ground clearance and strong suspension, while excellent for clearing obstacles, don’t help with aerodynamics at any speed. On the highway, the truck’s blocky profile, additional off-road parts like its heavy-duty bumpers, and those same aggressive tires simply aren’t designed for low drag. The engine is tuned for torque delivery and reliability under stress, not for maximizing cruising efficiency. Its 16 MPG highway rating shows that it keeps its off-road character even when driving on paved roads.

Annual Fuel Cost

The EPA estimates an annual fuel cost of $2,750 for the 2026 Chevrolet Colorado ZR2 Bison. This figure is based on an assumption of 15,000 miles driven per year, split between city and highway conditions, and using national average fuel prices. It’s a valuable metric for buyers who need a realistic expectation of their year-to-year operational expenses. For a vehicle with the extreme off-road capabilities of the ZR2 Bison, this annual fuel expenditure is a necessary line item for those who prioritize unparalleled trail performance. Owners are often conscious of this cost but readily accept it as part of the total investment in a highly specialized, segment-leading off-road truck. The cost covers the fuel necessary to power a vehicle designed to conquer Baja or the Rubicon, not just the morning commute.

Real-World Expectations

In real-world use, ZR2 Bison owners can expect the EPA’s 16 MPG combined rating to be achievable, but sustained heavy off-roading will certainly push that figure lower. The vehicle’s mission guides its activities, crawling over rocks, slogging through mud, or powering up steep, sandy inclines demands significant power and, consequently, more fuel. The 2.7L TurboMax engine, while surprisingly potent, will work harder in these scenarios. Long stretches of highway travel, especially at higher speeds or with a load, will also see the MPG dip slightly. Conversely, conservative driving on flatter, less challenging terrain might push the needle just a touch higher. However, consistency is key; this truck doesn’t have a dramatically different city and highway MPG because its design priorities don’t focus on efficiency for either. Drivers who purchase this vehicle understand and accept that its phenomenal capabilities come with a steady demand for fuel.

How It Compares

In its specialized segment, the 2026 Chevrolet Colorado ZR2 Bison’s 16 MPG combined is in line with, or even slightly better than, its direct, hardcore off-road competitors. Consider the Ford Ranger Raptor, which achieves 17 MPG combined, with 16 City and 18 Highway MPG. While seemingly a touch better, the difference is negligible for a buyer prioritizing capability. Another close rival might be certain trims of the Toyota Tacoma TRD Pro, which, with its new i-FORCE MAX hybrid powertrain, can achieve up to 23 MPG combined, though that’s a very different engine strategy focused on low-end torque and some efficiency. Without the hybrid, a standard Tacoma TRD Off-Road with the automatic transmission often lands around 20 MPG combined. The Jeep Gladiator Rubicon, with its available 3.6L V6, typically hovers around 15-16 MPG combined, placing it squarely in the ZR2 Bison’s territory. For those who need more information beyond the ZR2 Bison, you can find all Chevrolet fuel economy data on our site, including COLORADO MPG across all years. The ZR2 Bison’s specific buyer isn’t looking at a Prius; they’re looking at trucks with lockers, long-travel suspension, and serious underbody protection, and in that context, 16 MPG is entirely competitive for the extreme performance it delivers.

Tips to maximize efficiency

Maintaining consistent throttle input is important for the ZR2 Bison. Avoid aggressive acceleration and sudden braking, as the heavy drivetrain and strong tires demand more energy to get rolling again.

While the ZR2 Bison is built for heavy-duty tires, ensure they are properly inflated to the manufacturer’s recommended pressures. Underinflated tires increase rolling resistance, directly impacting fuel economy.

Minimize unnecessary weight in the bed or cab. Every extra pound the 2.7L engine has to move requires more fuel, especially noticeable with a truck of this size and heft.

Use the 8-speed automatic transmission’s natural inclination to upshift. Gentle acceleration allows the transmission to find higher gears sooner, keeping RPMs lower and reducing fuel consumption.

Plan your off-road excursions efficiently. Combining multiple trips and optimizing routes, even off-pavement, can reduce overall distance traveled and the amount of challenging terrain encountered, saving fuel.