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 ...

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 ...

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 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 ...