The TDI boasts several combustion-enhancing technologies that help reduce emissions while at the same time improving smoothness, drivability and fuel economy.
GM Powertrain engineers recently drew inspiration from the auto maker’s Ward’s 10 Best Engines award by taking it on a development trip out West, making stops from Death Valley to Hoover Dam.
Hitting lofty performance and efficiency targets and deciding whether to supercharge or turbocharge were not the only major challenges engineers faced.