As an engineering student in late 19th-century Bavaria, Rudolf Diesel found little promise in steam and internal combustion ...

Cetane boosters can help make your diesel engine work more efficiently. How do cetane boosters work, and how much should you add to your fuel tank?

Diesel exhaust fluid, or DEF, is a key component in lowering pollutants emitted from diesel engines, helping to improve efficiency and reduce emissions.

Over time diesel fuel can degrade, losing its effectiveness and potentially damaging your engine. Here’s how long it stays fresh while being stored.