Add Yahoo as a preferred source to see more of our stories on Google. Researchers have developed a novel method to produce biodiesel from waste oil. This simple process requires relatively mild heat ...

LONDON (Reuters) - Major British independent oil firm Greenergy sees its future as an exploration company, but one that hunts for fuel in piles of stale pork pies and cakes rather than under the ...

Home mechanics have been pouring vegetable oil into engines for years, sometimes in the fuel tank, sometimes straight into the crankcase, and often with a camera rolling. The appeal is obvious: a ...