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

Putting vegetable oil in a car engine is a terrible idea and should never be done, or at least that's what some experts say.

Sure, high-performance engines burn fuel. But they wouldn’t be able to do it for very long if it wasn't for oil of varying viscosities that lubricates crankshafts, cams, bearings, rods, pistons, rings ...

The oil in your vehicle’s engine is pretty incredible. Its job is to protect every square inch inside your engine where there is metal-to-metal contact – your piston rings, cylinder walls, valves, ...