A Portuguese oil company, Galp Energia, plans to announce Wednesday that it is building a 6,500-barrel-a-day plant to make diesel fuel from vegetable oils using a method akin to refining oil. The ...

If you've seen any "Mad Max" movie, you know the measures Australians will take to keep their engines running.

We may receive a commission on purchases made from links. Diesel engines help us accomplish a myriad of tasks every day. While it is true that diesel engines are more efficient than gasoline engines ...