You're driving a loaded diesel rig down a mountain pass, foot hovering over the brake pedal, heart racing. How do you slow 20,000 pounds safely without cooking your brakes? Cue the exhaust brake -– ...

While descending a winding mountain road, that sharp, acrid smell of burning metal or melting rubber suddenly fills the cabin. Many drivers shrug it off, thinking it’s just exhaust fumes from the car ...