Some semi trucks use 18-speed transmissions because they require the extra gears to keep the engine in its ideal RPM range in various driving scenarios.

Anyone who's spent any time driving knows that semi-trucks are a fixture on American roads. Vehicles from the most popular semi-truck manufacturers covered just over 500 billion miles in 2022 alone, ...

One of the most fulfilling parts of driving a car is shifting gears. Enthusiasts like us yearn for open, twisty roads, going through the gears and surfing a wave of torque. Yet, most of us are stuck ...

Some semi trucks use single axles, while others use double or tandem axles. Here are the differences between the two setups and why they matter.