Rich1961ExplorerSep 24, 2016New Duramax Power SpecsNew L5P Duramax power specs: http://gmpowertrain.com/assets/docs/2017-US-Product-Information-Guide.pdf RichShow More
drittalExplorerSep 24, 2016I'm impressed by the new numbers by both Ford and GM. Let's see how they hold up real world.
