In the diesel performance realm, it’s not uncommon for general repair items to morph into high-horsepower builds. Case in point, when this ’09 GMC Sierra came into Flynn’s Shop in Alexander, Illinois, ...

With the introduction of the '07 GMT900 trucks, you can get a 2500HD or 3500HD with an all-new body and interior wrapped around a cleaner and more powerful version of the famous Duramax diesel or a ...

GM's new 6.6-liter "LML" Duramax V-8 turbodiesel for its 2011 Chevrolet Silverado and GMC Sierra Heavy Duty pickups will be capable of burning B20 biodiesel fuel, according to a GM press release ...