GM Revealed 2027 Silverado With 900-Mile Range
The upcoming 2027 Chevrolet Silverado and GMC Sierra diesel models offer an extended range for long-distance drivers.
Updated on Sept. 20, 2026 in Trucks
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General Motors has unveiled the 2027 Chevrolet Silverado and GMC Sierra, featuring a 3.0L Duramax turbodiesel engine that enables a projected driving range of over 900 miles. These trucks are designed to provide high-efficiency performance for owners who prioritize long-distance travel and towing capabilities.
Why it matters
By pairing a 34-gallon fuel tank with a refined turbodiesel engine, GM aims to offer a range efficiency that competes directly with electric and hybrid alternatives. This configuration helps owners minimize refueling stops during long hauls or while managing heavy towing duties.
The 2027 two-wheel-drive Silverado utilizes a 34-gallon fuel tank to achieve an estimated 27 mpg on the highway, while the 3.0L Duramax engine produces 305 horsepower and 495 lb-ft of torque. These diesel models are rated for a towing capacity of up to 12,100 pounds.
The players
General Motors
A major American automotive manufacturer known for producing high-volume trucks like the Chevrolet Silverado and GMC Sierra.
The details
Engineers achieved this range by revising the piston and turbo vane designs to optimize the efficiency of the 3.0L inline-six engine. The system also includes a two-gallon increase in Diesel Exhaust Fluid (DEF) tank capacity to support longer intervals between refills. While the two-wheel-drive variant benefits from a 34-gallon tank, four-wheel-drive models will feature a 24-gallon fuel tank capacity.
Timeline
GM announced the 2027 Silverado and Sierra specifications in September 2026.
Production of the 2027 models is scheduled to begin in October 2026.
The Home Front
This release marks a notable attempt by GM to retain traditional diesel truck buyers by addressing the range-efficiency gap between conventional engines and new technologies. The development follows an industry-wide pivot toward maximizing fuel-per-mile metrics for the full-size truck market.
If you are planning to replace or upgrade your vehicle for towing or travel, factor in these efficiency gains when comparing the 2027 model year against current hybrid or electric options. Consult with a local dealership closer to the October production start date to review specific payload and towing requirements for your property needs.
The takeaway
The 2027 Silverado diesel powertrain represents a focus on maximizing range without sacrificing the hauling utility required for heavy work. Potential buyers should keep an eye on upcoming dealership inventory notices starting in October 2026 to see if this configuration fits their long-haul requirements.
Further reading
Explore the latest developments in towing and efficiency in our Trucks section.
Source note: This article includes information reported by HotCars.
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