The GM-Isuzu joint venture DMAX, Ltd. will invest $60 million in its Ohio diesel engine plant to make design changes that meet future emissions requirements. Established in 1998, DMAX has produced almost 1.6 million engines since opening in 2000. GM owns 60% and Isuzu owns 40% of the venture that makes the Duramax diesel for heavy-duty trucks.
DMAX, Ltd. has invested $760 million in the DMAX facility since 2000.
DMAX is home to the Duramax 6.6L Turbo Diesel engine used in the Chevrolet Silverado and GMC Sierra. The current Duramax is SAE-certified at 397 horsepower (296 kW) at 3,000 rpm and 765 lb-ft of torque (1,037 N·m) at a low 1,600 rpm.
All Duramax engines include a high-pressure (2,000 bar) piezo-actuated fuel system for greater fuel efficiency, improved performance and reduced emissions. The Duramax is also available in the Chevrolet Express and GMC Savana full-size vans.