Today, with modern technologies, you could use it for passenger car motor oil, automatic transmission fluid, hydraulic fluid, heavy-duty motor oil. There's no difference between oils re-refined with modern technologies and refined oil from virgin crude.
Then why isn't re-refining done more commonly?
Franceschi: Most refineries that use crude are on pipelines that run throughout the U.S. We are on a "rubber tire" pipeline. We have to go and collect [the used oil].
Condela: There's not a lot of awareness that re-refining is even possible. But it is a proven technology. The next time you go out and get an oil change, ask them what they do with their used oil and whether they use re-refined oil.
Franceschi: This reduces imported oil, so there's an energy independence side to it. It also reduces the environmental footprint. There's less energy consumption than refining oil from virgin crude. It's also a closed loop in that waste from one industry gets used by another industry.