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Engines that reshaped performance rules overnight

Some engines do more than power vehicles, they redraw the boundaries of what performance is supposed to look like. From race tracks to interstate highways, a handful of powerplants have forced ...
GM Authority

GM Keeping A Close Eye On Duramax Diesel LZ0 Engine Issues

Quality issues related to the 3.0L I6 LZ0 turbodiesel Duramax are drawing more and more attention online, and in response, GM ...