Mercedes-Benz unveils DiesOtto - the “future of the gasoline engine”

July 25, 2007 Don’t count out the petrol engine just yet according to motoring giant Mercedes-Benz, which has unveiled a new gasoline engine offering the high torque and fuel economy of a diesel together with extremely clean emissions. The company is highly optimistic, calling it “the future of the gasoline engine.” The Mercedes-Benz DiesOtto powertrain is a further development of the spark-ignition engine and includes features such as direct gasoline injection, turbocharging, variable valve timing and variable compression and it will be used in conjunction with a hybrid integrated starter/generator module. At its core lies the controlled auto ignition, a highly efficient combustion process similar to that of a diesel. The result is an 1800cc four-cylinder motor producing 238 bhp (175 kW) with torque of 400 nm while delivering 6 l/100 km (47 UK mpg, 40 US mpg) in an S-class.

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