Diesel engines are a very important part of the GM global product portfolio. In fact, GM offers 16 engine variants for 2008, available in 41 vehicle lines around the world, and sells over 1 million diesel engines annually.
We’ll introduce a new, state-of-the-art 4.5L V8 Duramax clean Turbo-Diesel in the 2010 model year in the U.S. for light-duty trucks. Fuel economy estimates for these trucks will be available in the future; however, diesel engines provide approximately 25 percent better fuel efficiency when compared to traditional gasoline engines of similar performance. The efficiency advantage is extended under towing and hauling situations, particularly when operating at higher altitudes. Modern diesel engines provide the customer with high torque characteristics over wide operating speeds, further enhancing the powertrain’s utility advantages. The new 4.5L V8 will blend the fuel efficiency and utility advantages of a diesel with refinement characteristics that are typically associated with gasoline powertrains.
Currently in the U.S., Chevy offers the Duramax 6.6L V8 clean diesel engine in the Chevy Silverado heavy-duty pickup, the Chevy Kodiak medium-duty truck, and the Chevy Express full-size van. GM first introduced the Duramax Diesel in the U.S. in the 2001 model year. Since then, customer enthusiasm for this heavy-duty diesel has been outstanding.
- Charlie Freese
Executive Director, Diesel Engineering
General Motors Corporation
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