1930s

1930s: Caterpillar started building diesels for their tractors.
1930: First US diesel-power passenger car (Cummins powered Packard) built in Columbus, Indiana (US).[19]
1930: Beardmore Tornado diesel engines power the British airship R101.
1932: Introduction of the strongest diesel truck in the world by MAN with 160 hp (120 kW).
1933: First European passenger cars with diesel engines (Citroën Rosalie); Citroën used an engine of the English diesel pioneer Sir Harry Ricardo.[20] The car did not go into production due to legal restrictions on the use of diesel engines.
1934: First turbo diesel engine for a railway train by Maybach. First streamlined, stainless steel passenger train in the US, the Pioneer Zephyr, using a Winton engine.
1934: First tank equipped with diesel engine, the Polish 7TP.
1934–35: Junkers Motorenwerke in Germany started production of the Jumo aviation diesel engine family, the most famous of these being the Jumo 205, of which over 900 examples were produced by the outbreak of World War II.
1936: Mercedes-Benz built the 260D diesel car.[21] AT&SF inaugurated the diesel train Super Chief. The airship Hindenburg was powered by diesel engines. First series of passenger cars manufactured with diesel engine (Mercedes-Benz 260 D, Hanomag and Saurer). Daimler Benz airship diesel engine 602LOF6 for the LZ129 Hindenburg airship.
1937: The Soviet Union developed the Kharkiv model V-2 diesel engine, later used in the T-34 tanks, widely regarded as the best tank chassis of World War II.
1937: BMW 114 experimental airplane diesel engine development.
1938: General Motors forms the GM Diesel Division, later to become Detroit Diesel, and introduces the Series 71 inline high-speed medium-horsepower two stroke engine; GM's EMD subsidiary introduces the 567 two stroke medium-speed high-horsepower engine for locomotive, ship and stationary applications; These GM and EMD engines utilize GM's patented Unit injector.
1938: First turbo diesel engine of Saurer.