Like any other stored commodity, diesel fuel deteriorates with time, especially if it is kept motionless in tanks used for fleet systems, marine engines, or backup generators. Recognizing bad diesel ...

It's been dubbed the "diesel dupe". In September, the Environmental Protection Agency (EPA) found, external that many VW cars being sold in America had a "defeat device" - or software - in diesel ...

Military vehicles such as Humvees are often seen wading through water without much trouble, which gives diesel engines a reputation for being nearly indestructible. While they are tough and generally ...

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 ...

What is compression ratio? An explanation of compression ratio; what it means and why it is important. Why some cars need ...