You might have heard the term "jackknifing" with regards to semi-trucks, especially when they're in accidents. What is jackknifing, and how does it happen?

Semi-trucks cover millions of miles each year delivering everything from apples to zithers. How long does a semi-truck engine last with good maintenance?

Tariffs, regulation rollbacks and funding freezes may slow down the industry's growth. But cleaner-running trucks are still gaining ground — in a slower ...