15 MPG combined is not just a number on the sticker for the 2026 Chevrolet Silverado Mud Terrain Tires 4WD 6.2L 8-cylinder; it’s a direct reflection of its intent. This isn’t a vehicle designed for hypermiling or sipping fuel on a daily commute to a cubicle. It’s a dedicated, purpose-built machine for those who demand uncompromising capability, who navigate challenging terrains, haul significant loads, and often venture where paved roads cease to exist. The 6.2L V8, paired with a 10-speed automatic, delivers prodigious power and torque. With chunky mud-terrain tires on all four corners, every revolution is about transferring brute force to the ground, not maximizing efficiency. The individuals drawn to this particular Silverado configuration are keenly aware of the fuel economy implications and accept them as a necessary trade-off for the extreme performance and off-road prowess it offers.

City and Highway Performance

Beginning with the specifics, the EPA rates this Silverado at 14 MPG in the city and 17 MPG on the highway for this specific configuration. These figures are as expected. In urban environments, the mass of the full-size truck, combined with the rolling resistance of aggressive mud-terrain tires and the V8’s thirst, means frequent stops and starts will naturally keep the city MPG firmly in the mid-teens. The 6.2L, while equipped with cylinder deactivation technology, still needs to move a substantial amount of steel, and those mud-terrains are designed for grip and durability, not low friction. On the highway, the situation improves slightly, with the 10-speed automatic doing its best to keep the engine RPMs low at cruising speeds. However, the aerodynamic drag caused by the truck’s sheer size and the knobby tire tread, which is designed to dig into soft surfaces, inevitably works against optimal highway efficiency. For buyers of this particular Silverado, the highway MPG is likely less of a concern than its ability to comfortably traverse hundreds of miles to a remote cabin or a challenging trailhead. The slight bump from city to highway is appreciated, but not the primary driver for its purchase.

Annual Fuel Cost

The EPA’s estimated annual fuel cost for the 2026 Chevrolet Silverado Mud Terrain Tires 4WD 6.2L 8-cylinder stands at precisely $3,850. This figure is calculated based on an average of 15,000 miles driven per year, assuming national average fuel prices. For a vehicle of this caliber, with its performance-oriented powertrain and all-terrain capabilities, this cost is a transparent reflection of its operational expenses. The $3,850 isn’t a hidden burden; it’s an upfront understanding for the buyer that maintaining this level of capability and power comes with a tangible running cost. Individuals who invest in a truck configured this way are typically prepared for such expenses, viewing it as part of the overall cost of ownership for a tool that enables their specific lifestyle or demanding work requirements. They are not looking for economy, they are looking for capability. For more information on all Chevrolet fuel economy data, you can explore our database.

Real-World Expectations

In the real world, owners of the 2026 Silverado with the 6.2L and mud tires should anticipate their fuel economy to largely align with, or even slightly dip below, the EPA estimates, particularly if they frequently use the truck’s formidable power. Aggressive driving, heavy towing, or extensive off-road use will predictably consume more fuel than average. Hauling a large boat or a fully loaded utility trailer across varied terrain, for instance, will engage the V8’s full potential and impact MPG significantly. Similarly, venturing deep into mud, sand, or rocky trails requires constant throttle input and low-range gearing, circumstances where fuel efficiency takes a backseat to torque delivery and traction. Those who buy this truck are often performing these exact tasks, and they expect the numbers to reflect those demanding applications. They understand that a truck built for extreme environments and heavy lifting isn’t going to set efficiency records.

How It Compares

When stacked against its direct competitors configured for similar levels of off-road prowess and power, the 2026 Silverado’s 15 MPG combined is right in the thick of it. A Ford F-150 Tremor with the 3.5L EcoBoost V6 typically hovers around 17 MPG combined, a slight edge, but that V6 doesn’t quite deliver the same visceral roar or linear powerband of Chevy’s 6.2L V8. The Ram 1500 Rebel with the 5.7L Hemi V8 and its similar aggressive tire package also typically yields 17 MPG combined, primarily thanks to its mild-hybrid eTorque system, a technology not present in this specific Silverado. When considering more extreme factory off-roaders like the Ram TRX with its supercharged 6.2L V8, the Silverado’s 15 MPG looks downright thrifty next to the TRX’s dismal 12 MPG combined. Even the Ford F-150 Raptor R, with its own supercharged V8, manages only 12 MPG combined. For the buyer prioritizing unadulterated V8 power and rugged capability without venturing into the supercharged stratosphere, the Silverado 6.2L offers a good balance of power and efficiency. Across the SILVERADO MPG across all years, this 6.2L with mud tires consistently represents the most capable, and often the least efficient, variant.

Tips to Maximize Efficiency

Maintaining proper tire pressure is crucial, especially with large mud-terrain tires. Under-inflated tires increase rolling resistance, forcing the engine to work harder and consume more fuel. Regularly check pressures to the manufacturer’s specifications for optimal performance and safety.

Adopt a smooth driving style; sudden accelerations and harsh braking waste fuel. Given the substantial power of the 6.2L V8, it’s easy to be heavy-footed, but anticipating traffic and gently modulating the throttle can make a noticeable difference in your actual MPG.

Minimize unnecessary weight. While this Silverado is built for hauling, removing heavy items from the bed or cab when not needed reduces the load on the engine, improving efficiency. Every extra pound your engine has to move requires more fuel.

Consider using cruise control on highways, particularly on flat terrain. Maintaining a steady speed helps the 10-speed automatic stay in its most efficient gear, preventing unnecessary downshifts and fuel consumption. This is especially true for longer journeys.

Regular maintenance, including clean air filters and spark plugs, ensures the 6.2L V8 operates at peak efficiency. Neglecting simple service items can subtly degrade fuel economy over time, regardless of the vehicle’s intended purpose.