• 2012 Mercedes-Benz SLK

    We rarely think about what's in our gasoline when we fill the tank, but carmakers have to. Mercedes-Benz has just launched a new direct-injected 3.5-liter V-6 engine in its 2012 SLK model, with an innovative "lean burn" mode that will also be used on a smaller four-cylinder engine. The "Stratified" engines are far more efficient under certain conditions than conventional engines, raising their efficiency and the gas-mileage ratings of the cars they're used in. But the company can't bring the most advanced "Stratified" engine to the United States, because U.S. gasoline has far too much sulfur...

  • Mercedes-Benz DiesOtto engine
    Mercedes Pushing Ahead With DiesOtto Sparkless Ignition Technology

    When it comes to advanced powertrains, most of the automotive sector has congregated around hybrid and electric technology such as parallel hybrids, range-extended electric vehicles or pure electrics. However, just a few years back, several automakers, such as Volkswagen, General Motors and...

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