2020 Chevrolet Silverado 1500 Duramax Diesel Delivers EPA-Estimated 33 MPG (7.1 L/100km)Jul 27th, 2019
The official fuel economy figures are in for the 2020 Chevrolet Silverado 1500 Duramax diesel engine. With an EPA-estimated 33 mpg or 7.1 L/100km on a highway, the 2020 Silverado 1500 Diesel is the most efficient pickup truck in its class. In a city, the new engine can achieve up to 23 mpg or 10.2 L/100km of fuel efficiency. By comparison the Chevrolet Colorado, when equipped with the 2.8L Duramax diesel engine, can achieve a maximum fuel economy figure of 30 mpg or 7.8 L/100km on a highway.
With 277 horsepower and 460 lb-ft of torque, the Silverado 3.0L Duramax with four-wheel drive is also capable of towing up to 9,300 pounds and a max payload of 1,870 pounds, meeting the towing needs of about 90 percent of light-duty customers.
Highly durable materials make up key components, including iron cylinder liners within the aluminum engine block, a forged steel crankshaft and connecting rods as well as blended silicon/aluminum pistons for greater heat resistance and reduced expansion. The engine was subjected to the same extreme simulated and real-world performance testing every Chevrolet truck engine undergoes.
The inline-six engine provides an inherently balanced configuration for low noise and vibration characteristics. It features an aluminum block for weight reduction, an 84mm x 90mm bore and stroke, dual-overhead camshafts and four valves per cylinder. The exhaust brake, which is available in tow-haul mode, can provide additional engine braking, especially when going downhill. The driver-selectable stop/start technology enhances fuel economy by shutting off the engine at stoplights and certain other stop-and-go situations, helping save fuel. The engine automatically restarts when the driver takes his or her foot off the brake. The 3.0L Duramax is exclusively paired with a Hydra-Matic 10-speed automatic transmission, featuring smaller gear steps and an overall larger ratio spread to enable peak efficiency.
The new 3.0L Duramax diesel engine is available on the LT, RST, LTZ and High Country trims and in either 4x4 or 4x2 configuration.
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