Oil-cooled 2-cylinder aspirated engine in inline construction with integrated cooling system. Direct injection with single injection pumps and optional electronic governor. Low fuel consumption due to optimised combustion. Long oil change intervals of up to 1000 hours. Minimised running costs due to low maintenance need and little wear. High reliability combined with durability. No corrosion or cavitation due to oil cooling and lubrication. A very good load response ensures an immediate power supply.