DETROIT -- General Motors will offer a 330-hp V-8 diesel engine for its light-duty trucks in the United States, possibly as early as the 2010 model year.
The engine is new and will meet the strictest emissions standards in all 50 states, said Tom Stephens, GM group vice president in charge of powertrains. The company plans to use a urea injection system to control emissions.
The automaker would not give the displacement of the engine but said it has double overhead cams and four valves per cylinder.
A GM spokesperson said likely candidates for the engine will be the GMC Yukon, Chevrolet Tahoe and Cadillac Escalade SUVs.
The automaker said the engines will provide 25 percent better fuel economy than the gasoline engines they replace. That would mean a fully equipped Tahoe with the diesel engine would get about 26 mpg in city driving. The current gasoline-powered Tahoe gets about 21 mpg in the city.
This would be GM's first light-duty diesel engine for North America since the disastrous car diesels it built in the late 1970s and early 1980s. Those engines were plagued by mechanical faults.
The Chrysler group will be first to the light-duty market with a diesel in its 2007 Jeep Grand Cherokee.
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