History of the diesel car and considerably lighter than the in-line six-cylinder it also replaced, this 3.0L V-6 produces 165 kW (224 hp) at 3,800 rpm and max torque of 510 Nm (376 ft·lbf) at 1,600-2,800 rpm and makes use of a four-valve head. Additionally, fitment of Mercedes-Benz BlueTec system, a concert of emissions control strategies, renders this new diesel 50-state legal in the U.S. beginning in 2008 (stringent NOx limits have made U.S. passenger-car diesels unpopular or impossible in parts of the U.S. in recent years). In 2006, the new Audi R10 TDI LMP1 entered by Joest Racing became the first diesel-engined car to
DESA (company) engine assembly began in 1996, RK 215 engine production began in 2000. In 2009 the company unveiled Iran's first indigenous heavy diesel engine, the D87. A dual fuel (gas / diesel) version is also to be produced. The company produces diesel generators for permanent and emergency electricity supply. 104 units have been supplied to the Iran Telecommunications Company. The company is a supplier to both the Iranian Islamic Republic Railways and the Raja Passenger Train Company. DESA has manufactured the Ruston RK 215 diesel engine for the AD43C mainline diesel locomotive, of which 70 units were manufactured by Wagon Pars.