WOOSTER, Ohio — Buehler Food Markets here recently converted one of four tractor trailers — which are used to pick up and deliver local produce — from diesel to waste vegetable oil (WVO), which ...

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 ...

FOUNTAIN CITY, Wis. – Once Joe Libera gets his hands on an aging Volkswagen and jugs of waste vegetable oil, they're bound to be recycled. Libera sells VW diesel vehicles that he restores and converts ...

A quart of fully synthetic motor oil is typically under $10, yet it can be all that stands between you and having to pay thousands for a new engine. To help prevent this, of course, oil companies ...

As the United States seeks to lessen its reliance on foreign oil, biodiesel is expected to play a role. According to the National Renewable Energy Laboratory, a branch of the Department of Energy, ...