Abstract: The present invention is a lawn mower with a compression ignition combustion engine that can use multiple fuel types such as petroleum based fuels or plant based fuels or any combination thereof. The lawn mower includes a chassis with a rear end having a plurality of spaced wheels, a compression ignited engine mounted on the chassis to provide power to the lawn mower and a plurality of grass cutting blades mounted directly or indirectly on an output shaft of the compression ignited engine. The lawn mower also includes a handle projecting from the rear end of chassis and a fuel tank and a fuel line supported by the chassis to provide the multiple fuel types to the compression ignited engine.