A liquid fuel processed from a non-petroleum material such as coal or waste plastics.

Synthetic fuel, derived exclusively from non-organic sources as opposed to organic sources (e.g. biodiesel, ethanol, etc.)

Fuel synthesized in a laboratory as opposed to refined from crude oil

A derivative of waste plastics that results in a form of kerosene

A counterfeit fuel produced by illegitimate companies that can prove harmful to industry when mixed with fuel reserves