General Motors Corp. (GM) recently announced the production of its one-millionth Duramax V-8 turbo-diesel engine at the DMAX plant in Moraine, Ohio. DMAX Ltd., a joint venture between GM and Isuzu Motors Limited, was established as a diesel engine company in 1998. GM first introduced the Duramax diesel in the U.S. in the 2001 model year and since then, GM’s heavy duty diesel pickup market share has jumped nearly tenfold in the six years that Duramax engines have been offered. The Duramax 6.6L V-8 is a four-valve high pressure common rail direct injection diesel equipped with a diesel particulate filter to meet the stringent 2007 emissions requirements. Available in GM’s Chevrolet Silverado and GMC Sierra heavy-duty trucks, the engine delivers a 365 horsepower (272 kW) and 660 lb.-ft. of torque (895 Nm).It is also offered with increased power and torque for the Chevy Kodiak and GMC TopKick medium duty applications. Versions are available with 300 horsepower and 520 lb.-ft. of torque, as well as a new 330-horsepower option with 620 lb.-ft. of torque. The Duramax is also available in GM’s full-size vans, Chevrolet Express and GMC Savana.