Author: staff@jalopnik.com (Monday Goma)

About 20 years after the launch of the 6.6-liter Duramax V8, GM’s 3.0-liter Duramax inline-six turbodiesel arrived in 2019 with a promise to deliver “outstanding fuel economy, great horsepower, and responsive torque.” Those have been fulfilled to this point, with the engine producing as much as 305 horsepower and 495 pound-feet of torque. In its best guise, the three.0 Duramax averages a goodly 26 mpg, so it’s little surprise that it found its way right into a handful of GM models, including the Chevrolet Silverado 1500, Suburban, Tahoe, GMC Sierra 1500, Yukon, and Cadillac Escalade. Later, it dropped the diesel…