The feds aren't scrapping DEF altogether, but this could potentially address a large portion of emissions system failures.

The death knell has been ringing for diesel engines over the last decade, primarily because of their environmental impact. But some still swear by diesels for their abundant torque, efficiency, and ...

The U.S. Environmental Protection Agency (EPA) is escalating its response to consumer complaints regarding Diesel Exhaust Fluid (DEF) system failures, announcing a new investigation aimed at major ...

Thai PBS Verify has investigated a viral video claiming that cooking oil can be used as a substitute for diesel fuel. Experts ...

Diesel engines are renowned for their power and fuel efficiency, but cold weather can pose significant challenges to their operation. Many diesel owners wonder if starting their engines in cold ...

This particular OM651 diesel engine failed, but the issue does not appear to be related to its complex, overbuilt construction. The Mercedes OM651 diesel engine is robust but has mixed reliability due ...

Scientists are exploring a surprisingly simple way to clean up diesel engines: adding tiny droplets of water to the fuel. During combustion, the water rapidly vaporizes, triggering micro-explosions ...

Diesel engines typically have beefier, more robust cooling components to keep the motor cool in varying conditions. Modern diesels operate at a higher compression ratio, which makes their combustion ...

Diesel-powered vehicles require diesel exhaust fluid to reduce engine emissions, making them less harmful to the environment and safer to drive.