If you are tired of eating up front disc brakes and having to lay on the brake pedal longer than you’d like when your late-model GM HD pickup is towing a big gooseneck or heavy tow-behind trailer, we ...

Diesel exhaust fluid (DEF) is nothing new. GM’s Duramax-powered Chevrolet Silverado and GMC Sierra 2500HD and 3500HD pickups have had used the stuff since 2011. So has Ford’s F-Series Super Duty.

Optimum exhaust flow is critical to maximizing the efficiency of any engine. After all, an engine is just a sophisticated air pump – and the easier it is to move air in and out, the more efficient the ...

AFE Power’s New Cold-Air Intake, Diamond Eye’s DPF-Back Dual Exhaust, and Hypertech’s Programmer Improve a 6.6L Duramax LML’s Overall Performance and Fuel Economy In the first installment of this ...

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 ...