2024 Chevy Duramax Mpg Specs. In terms of specs, the big changes are the peak power and torque figures, with the new 3.0l i6 lz0 turbodiesel duramax engine producing a maximum of 305 horsepower at 3,750 rpm and 495. The duramax diesel engine not only offers the highest torque available in chevy’s silverado lineup but also the best fuel economy.
If you look at the engine specs of chevrolet silverado 2500hds over the years like the back of a baseball card, the engine output of the duramax diesel has grown like barry. Current truck is a 2014 duramax with the 6 speed.