Liquid and gaseous biofuels, such as ethanol and biodiesel (a form of diesel gas that is made from crops that produce triglycerides including soybean oil), may also be used. Engines with acceptable modifications may also run on hydrogen gas, wood fuel, or charcoal gas, and from so-referred to as producer https://creopt.com/empowering-connections-the-dynamics-of-mentor-matching-engines/