MILFORD, MI – General Motors Corp.’s Powertrain division unveils the latest version of its heavy-duty Duramax V-8 turbodiesel, which aims to maintain class-leading performance while conforming to stringent new U.S. emissions requirements taking effect next year. Highlighted at a GM Powertrain technology event at the auto maker’s proving grounds here, the new 6.6L Duramax is the first GM engine to be sold in the U.S. equipped with a soot-reducing diesel particulate filter (DPF) as part of ...

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