A perennial competitor to Ford's Power Stroke V8 and Ram's Cummins turbo diesel inline six-cylinder engines, the 6.6-liter Duramax is one of the most popular diesel powertrains for heavy-duty trucks, ...
The Duramax namesake has been alive for over 20 years and has been offered in 12 different variations. While there are some newer engines in the series that strayed from the norm, the Duramax engine ...
The Environmental Protection Agency has yet to release its official highway, city and combined fuel economy ratings for the 2020 GMC Sierra 2500HD with the 6.6-liter L5P Duramax diesel V8 engine, but ...
General Motors has been using Duramax diesel engines in certain workhorse models for nearly a quarter century. The 6.6-liter V8 version which powers Chevy Silverado 2500/3500HD and GMC Sierra Heavy ...
Of the three United States automakers that offer diesel-powered heavy-duty pickup trucks, only two of those diesel engines are V8s. Those V8 diesel engines are the 6.6 Duramax found in offerings from ...
GMC added the AT4 off-road trim to the redesigned 2020 Sierra heavy-duty lineup. We recently took possession of a loaded 2020 Sierra 2500 AT4 crew cab and wondered just how its fuel economy would ...
About two decades 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 ...