The invention provides a novel engine suitable for various fuels, and particularly relates to the field of engines. The novel engine comprises an engine combustion chamber, a Venturi tube, an oil supply pipe, an oil tank, an oil delivery pipe, an adjustable nozzle, an oil injection shower nozzle, a conical net, a conical head and a screw, wherein one end of the oil delivery pipe penetrates to a throat position of the Venturi tube, and penetrating positions are in sealed connection; the other end of the oil delivery pipe extends into the oil tank; and the end, located in the Venturi tube, of the oil delivery pipe is connected with the adjustable nozzle. Compared with an existing engine, the novel engine can use various fuels such as methanol gasoline by adjusting the adjustable nozzle to achieve better economic benefits and better conform to national energy policies.