Friedrichshafen, including the off-highway part of Detroit Diesel in the US, was acquired by the EQT Partners investment group. A new company, Tognum GmbH, was formed as a holding company for the brands held by Daimler Trucks and MTU Friedrichshafen. Both companies use the 'Detroit Diesel' name and corporate logo. 2007: Detroit Diesel Corporation launches its DD engine platform with the DD15 Engine. 2008: Detroit Diesel Corporation was recognized for its Brownfield Redevelopment efforts, and also won the national EPA Phoenix Award for its plant. 2009: The 1 millionth Series 60 engine was sold. 2010: An additional $190 million investment allowed Detroit Diesel Corporation to launch Blue Tec emissions technology and the final engine of its new engines family: the Detroit DD platform of engines that includes the DD13, DD15, DD15TC, and DD16 engines. 2010: Detroit began production of EPA 2010 certified engines. 2011: Detroit Diesel Corporation is named one of the two 2011 Michigan Green Leaders in the Big Business category by the Detroit Free Press. DDC changes brand name from Detroit Diesel to Detroit. 2012: 100,000th DD platform engine built. DD axles, Virtual Technician, DT12 automated manual transmission and Detroit Genuine Parts are introduced. 2013: 75th anniversary. 2016: Detroit Diesel agreed to pay US$28.5 million to resolve violations of US federal Clean Air Act. The company sold 7,786 heavy-duty diesel engines, which were assembled approximately 80% complete in 2009, including the crankshaft, block, pistons, and connecting rods. These short block engines were stored temporarily, and the remaining assembly work was completed in early 2010 for use in trucks and buses of in model year 2010. These engines were alleged not to comply with stricter 2010 emission standards. The company believed its practice was allowed under EPA regulations. Products Current products DD5: A I4 developing and . DD8: A I6 developing and . DD13: A I6 developing and . DD15: A I6 developing and . DD16: A I6 developing and . Front Steer Axles: Ratings up to Single Rear Axles: Ratings up to Tandem Rear Axles: Ratings up to DT12 Transmissions: A HD 12 speed automatic Services Detroit Reman Virtual Technician Engines still supported Series 50: A I4 developing and . Series 60: A , , or I6 developing . Mercedes-Benz Engine (MBE) 900: A I6 developing and . Mercedes-Benz Engine (MBE) 4000: A , I6 developing and . DD15TC Related engine series Series 40E (rebranded International DT/Maxxforce engines)