Home mechanics have been pouring vegetable oil into engines for years, sometimes in the fuel tank, sometimes straight into ...

Supermarket vegetable oil is more expensive than gasoline, but many restaurants will give you their old stuff for free. I was always a little uncomfortable with the ecological implications of car ...

With gasoline prices volatile and the Obama administration committed to easing the United States' addiction to oil, Americans seem to be taking more interest in alternative fuels, including those ...