2.8L Duramax LWN

Colorado & Canyon 4 Cylinder diesel

A 4 cylinder diesel option was added to the 2016 model year GMC Canyon and Chevrolet Colorado midsize pickups. This addition made the Canyon and Colorado the first and, for the time being, the only diesel option available in its segment. The Canyon/Colorado competes against Nissan's Frontier and Toyota's Tacoma pickup models, while Ford and Dodge continue to abstain from the mid-size market. The inline 4 cylinder 2.8L Duramax LWN produces 181 horsepower and 369 lb-ft of torque. For the 2017 model year, General Motors made the 2.8L Duramax optional in GMC Savana and Chevrolet Express 2500/3500 vans.

General Motors unveiling of the 2015 Chevrolet Colorado came with an interesting twist - the mid-size pickup and its GMC twin, the Canyon, were scheduled to receive a diesel engine option. A 2.8L, inline 4 cylinder Duramax diesel has joined the engine choices for the new Colorado and Canyon pickups for the Fall of 2015, where the 2016 model year pickups are projected to hit dealership lots. The 2.8L Duramax is currently in GM's International portfolio, where it is offered in a number of applications in a magnitude of countries; it just hasn't reached the United States yet. The 2.8L also has a sister engine, measuring 2.5 liters and based on the same basic architecture. As you're probably already aware of, GM had planned to offer a diesel in their half ton Sierra and Silverado models (4.5L Duramax), but the entire project was scrapped when the economy took a turn for worse and a struggling General Motors required a significant bailout from the U.S. government.

The 2.8L Duramax is an inline 4 cylinder, variable geometry turbocharged diesel featuring a high pressure common rail injection system and dual overhead camshaft design. The unit produces 181 horsepower and 369 lb-ft of torque, which helps substantiate the fact that these pickups, properly equipped, will be rated to tow up to 7,700 lbs. At only 170 cubic inches, the Duramax powered Colorado and Canyon are expected to increase the gap on their already segment leading fuel economy.

The engine's will be backed by General Motor's 6L50 Hydra-Matic six speed automatic transmission and power will be transmitted to the pavement through a 3.42:1 axle ratio. An integrated electronic brake controller, diesel exhaust brake system, and automatic rear locking differential will also be standard issue on all diesel powered pickups.

 

2.8L Duramax Specs

Engine:

2.8L Duramax Inline 4 Cylinder Turbodiesel

Displacement:

2.8 liters, 170 cubic inches

Engine Block Material:

Cast iron

Cylinder Head Material:

Cast aluminum alloy

Compression Ratio:

16.5 : 1

Bore:

3.70 inches (94 mm)

Stroke:

3.94 inches (100 mm)

Turbocharger:

Water cooled variable geometry turbocharger (VGT), intercooled

Injection:

Direct injection, 2000 bar high pressure common rail (29,000 psi)

Valvetrain:

DOHC (dual overhead camshaft), 16 valve (4 valves per cylinder)

Peak Horsepower:

181 hp @ 3,400 rpm

Peak Torque:

369 lb-ft @ 2,000 rpm