Semi trucks, though they get little recognition, or even respect, for that matter, are holding America together. These rigs, often called 18-wheelers, can last millions of miles, and are concentrated ...

Semi-trucks have a lot of gears, but they have a lot of lights as well, and some can have more than others. While those extra lights might look flashy, confusing, or even a little mesmerizing, there's ...

Semi-trucks are the blood pumping around America’s veins, hauling nearly everything that ends up on store shelves or doorsteps. Without them, the economy would grind to a halt, but it can feel like ...

Have you ever wondered why some semi trucks have one set of wheels and others have two sets crammed together? That's because some semis use a single axle while others have tandem axles, but why is it ...

The instrument panels in many of the cars produced today don't contain a wide variety of gauges. The ones used to monitor a car's operating systems have largely been replaced by warning lights that ...