Internal combustion engines are incredibly complicated machines that many of us interact with on a daily basis, but don't completely understand. You get in your car, turn the key or push the start ...

Imagine that you're getting on board your old diesel truck, turn it on, and instead of the low-revs rattling sound, you'll hear it revving up uncontrollably. Even though that's not common, it may ...

We all know diesel engines produce Earth-moving torque to outclass gas engines in pulling power and heavy-duty workloads. We also know that diesels could outlive a similar gas engine, given proper ...

We continue satisfying curiosities—some simple, some not-so-simple—about diesels, with this quick look at what might be one of the most unnerving mechanical problems a truck owner ever wants to ...

Setting a record could be dangerous or even deadly. Well, that is what happened when a Cummins diesel truck attempted to reach run a 3,000 horsepower and ended up in a fireball. Photos and videos of ...