
The long‑term test of the 2026 Chevrolet Silverado 1500 Trail Boss is now a month into its two‑month run, giving a clear picture of how the off‑road‑oriented half‑ton performs in everyday use.
Engine and Powertrain
The vehicle under review is equipped with a 6.2‑liter V8 producing 420 horsepower. The engine pairs with a transmission described as “quiet butler‑like,” delivering power without hesitation. An active exhaust system, priced at $455, adds a noticeable growl when the driver shifts into Sport mode, and the feature remains functional after a key cycle.
Fuel consumption has been tracked over roughly 3,000 kilometres. In mixed driving, the onboard computer reports an average of 13.5 L/100 km, a figure confirmed by fuel receipts. Highway runs tend toward 10.5 L/100 km, which beats the official NRCan estimates for this class.
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Tire Choices and Off‑Road Capability
Standard equipment includes Goodyear Territory MT tires sized LT275/65 on 18‑inch wheels. While these provide a visual upgrade over the standard 20‑inch wheels, ride quality suffers, with more noise transmitted into the cabin.
To address this, the test vehicle was fitted with BFGoodrich KO3 tires of the same size. The KO3’s interlocking tread elements and reinforced sipes improve traction on both on‑ and off‑road surfaces, especially when dealing with sticky mud. According to the local tire shop, the KO3s are “the best factory‑balanced BFGs” the shop has seen in years, indicating a step forward in manufacturing quality.
The tires “draw compliments at a fuel stop from the driver of an overland‑converted Sprinter van,” which feels a little out of place but highlights the visual appeal.
Practicality and Cargo
The truck’s wheelbase measures 157 inches, and its overall length reaches 242.4 inches, making maneuvering in tight spaces a challenge. Despite the size, the Silverado’s camera system offers multiple viewing angles for reversing and handling confined areas, though the specific cargo‑bed camera was not installed on this unit.
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Original Perspective
When placed alongside previous model years, the 2026 Trail Boss refines rather than overhauls the formula that has kept Chevrolet competitive in the off‑road segment. The shift to a larger 6.2‑liter V8, coupled with the optional KO3 tires, suggests a focus on durability and traction rather than pure fuel efficiency, a trend that aligns with recent industry moves toward more robust powertrains for heavy‑duty pickups.
Future Outlook
Chevrolet plans to replace the current 5.3‑liter and 6.2‑liter V8 engines with 5.7‑liter and 6.6‑liter units for the 2027 model year. This upcoming change may affect both performance and fuel consumption figures, prompting potential buyers to consider the long‑term implications of engine updates.
The test will conclude with a maritime summer road trip, during which the Silverado will be evaluated under load with a trailer and later with a full payload in its 5.5‑foot box. These final assessments should provide a full view of the truck’s capabilities before the long‑term test wraps up.

