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 ...

Woods Hole, Martha's Vineyard and Nantucket Steamship Authority officials have approved a three-month trial of a renewable diesel fuel whose components would be just as at home in a vat to cook French ...

Dear EarthTalk: My understanding is that you can run a diesel car on used cooking oil. Why would I want to do that and how would I convert such a vehicle to do so? — Benjamin Crouch, Boston, Mass. The ...