The EPA rates the 2026 Chevrolet Silverado 4WD ZR2 6.2L 8-cylinder at 15 MPG combined. For buyers of this off-road performance truck, this figure confirms the vehicle’s character. This isn’t a truck designed for low fuel consumption; it’s built to handle challenging terrain, tow heavy loads, and provide an exciting driving experience. The ZR2 designation signals a commitment to extreme capability, where strong axles, specialized suspension, and a powerful engine take precedence over maximizing miles per gallon. Buyers choose this Silverado for its capability, the sound of that 6.2-liter V8, and the peace of mind knowing they can tackle almost anything. Fuel economy, while acknowledged, isn’t the main reason a customer buys this level of performance and durability.

City and Highway Performance

The EPA breakdown for the ZR2 6.2L shows a city rating of 14 MPG and a highway rating of 17 MPG. These numbers reflect the challenges of moving a full-size, lifted, and heavily-armored truck through various driving conditions. In city driving, the large displacement V8, even with its 10-speed automatic transmission, works to get the truck’s mass moving from a stop, experiencing frequent stops and starts. This impacts efficiency. On the highway, the situation improves slightly as the engine settles into lower RPMs, but the ZR2’s aggressive all-terrain tires, taller ride height, and less aerodynamic design contribute to increased drag. This prevents it from achieving the highway numbers seen in more aerodynamic, road-focused vehicles. This is the trade-off. The aggressive tires, while critical for off-road grip, have higher rolling resistance. The enhanced suspension, while providing incredible articulation and damping, isn’t designed for optimal aerodynamic flow. Every aspect of the ZR2’s engineering points directly at its mission, capability, not fuel efficiency.

Annual Fuel Cost

The EPA estimates an annual fuel cost of $3,850 for the 2026 Chevrolet Silverado 4WD ZR2 6.2L 8-cyl. This figure is calculated based on an assumed 15,000 miles driven per year, split between city and highway driving, using national average fuel prices. For a buyer investing in a premium off-road truck like the ZR2, this annual expenditure is often seen as a cost of ownership, a necessary expense for a vehicle that offers unmatched performance and utility. It reflects the reality of owning a large-displacement V8 in a full-size pickup. Prospective owners typically know about the financial commitment involved with purchasing and operating such a vehicle, understanding that the powerful 6.2L engine, while exciting, will require a proportional fuel budget. The $3,850 figure provides a clear benchmark for budgeting and managing vehicle ownership costs for this Silverado configuration.

Real-World Expectations

In real-world driving conditions, drivers of the 2026 Silverado ZR2 6.2L can expect to see numbers closely align with the EPA estimates, assuming a disciplined driving style. However, the ZR2 often encourages a more spirited approach to driving. Aggressive acceleration, frequent use of the truck’s substantial towing or hauling capacity, or engaging in the kind of off-road adventures it was built for will push those numbers lower. Hauling a heavy trailer through mountain passes, for instance, will drop fuel economy significantly below the 17 MPG highway rating. Similarly, pushing the truck hard on trails, use of four-wheel drive low, or navigating deep mud will consume fuel at a much faster rate. For the ZR2 owner, these scenarios are precisely why they bought the truck. They understand that peak performance often correlates with higher fuel consumption, and they’ve accepted that. The expectation isn’t class-leading efficiency, it’s class-leading capability, and the fuel economy reflects that commitment.

How It Compares

When compared to its direct rivals in the extreme off-road truck segment, the Silverado ZR2 6.2L’s fuel economy performs well. The Ford F-150 Raptor R, for example, with its supercharged 5.2L V8, often gets closer to 12 MPG combined (10 city/15 highway). Even the standard F-150 Raptor with its 3.5L EcoBoost V6 typically lands around 16 MPG combined (15 city/18 highway), a marginal improvement despite having two fewer cylinders and smaller displacement. The Ram 1500 TRX, another V8 powerhouse with its supercharged 6.2L, is very thirsty, often rating in the single digits in city driving and rarely exceeding 12 MPG combined. Seen in this light, the ZR2’s 15 MPG combined appears quite respectable. Chevrolet has managed to package extreme performance with a relatively palatable (for the segment) fuel appetite. This comparison matters because ZR2 buyers are considering these very vehicles, and while efficiency isn’t primary, relative efficiency within the segment is still a consideration. For more detailed information on all Chevrolet fuel economy data, including other models and powertrains, explore our extensive database.

Tips to maximize efficiency

While the ZR2 isn’t built for fuel economy, good driving habits can still help reduce consumption. Maintaining consistent speeds on the highway and avoiding aggressive acceleration and braking are essential. The truck’s 10-speed automatic transmission is designed to keep the engine in its most efficient RPM range, so letting it do its job rather than manually shifting or constantly forcing downshifts will help.

Regular maintenance is critical for optimal engine performance and efficiency. Ensure tire pressures are always set to the manufacturer’s recommendations, underinflated tires increase rolling resistance and burn more fuel. Keeping the air filter clean and adhering to the recommended service intervals for oil changes and spark plugs will also positively impact the 6.2L V8’s operating efficiency.

Consider removing unnecessary weight from the bed and cabin when not needed. While the ZR2 is a heavy truck by design, every extra pound requires more energy to move. Additionally, if you have any aftermarket accessories like roof racks or light bars that aren’t in use, removing them can reduce aerodynamic drag, particularly at highway speeds, yielding small but measurable improvements.

Planning your routes to avoid heavy traffic and excessive idling will also contribute to better fuel economy, especially in city driving where the 6.2L V8’s consumption is highest. Taking advantage of the truck’s cylinder deactivation technology, when it switches to V4 mode during light load conditions, is most effective during steady-state cruising, which good route planning can help facilitate.

For a complete look at SILVERADO MPG across all years and configurations, including different engines and trim levels, our archive offers extensive data to help you understand the breadth of efficiency across the model lineup.