On this day, 92 years ago, on February 18, 1933 (January 24, 1933 in the lunar calendar), Kruber Company manufactured automobile diesel engines. Friedrich Kruber of the Industrial Zone of Essen, Germany announced on February 18, 1933 that it had successfully manufactured the first air-cooled diesel engine for use in automobiles. According to factory reports, the four-cylinder engine has a power of 50 horsepower. Kruber will install the new power unit into the company's mass-produced light trucks.