Diesel engines are known to be reliable and long-lasting, but they can also present unique maintenance issues that you must understand to avoid, and high up on that list is the gelling of diesel fuel.

Here’s the tricky part: a diesel fuel-related issue rarely reveals itself as clearly as other engine problems, making the ...

Many gas stations host diesel pumps that can be easily confused with gas pumps. Pumping diesel into your gas car can wreak havoc on its systems, forcing you to call a tow truck and mechanic.

EPA demands DEF failure data from diesel makers. Investigation could force recalls and software fixes for engines already on U.S. roads. 30-day deadline set.

Heavy-duty pickups and long-haul trucks rely on torquey diesel engines that are more economical, reliable, durable, and have a more straightforward construction than a comparable unleaded gas engine.