Diesel engines cannot work without oxygen, so how do diesel submarines operate when they're underwater? Their propulsion ...

Trucking keeps the world moving by delivering goods every day of the year. Drivers spend long hours on the road to make sure ...

What makes a diesel engine different to a regular gas engine, and is one better than the other?

Scientists are exploring a surprisingly simple way to clean up diesel engines: adding tiny droplets of water to the fuel.

Researchers in Nigeria say water in diesel emulsions could significantly reduce nitrogen oxides and particulate emissions ...