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http://www.msn.com/en-us/autos/news/mazda-announces-breakthrough-in-long-coveted-engine-technology/ar-AApIOMK?li=BBnbfcL&ocid=mailsignout Mazda announces breakthrough in long-coveted engine technology Mazda Motor Corp said it would become the world's first automaker to commercialise a much more efficient petrol engine using technology that deep-pocketed rivals have been trying to engineer for decades, a twist in an industry increasingly going electric. The new compression ignition engine is 20 percent to 30 percent more fuel efficient than the Japanese automaker's current engines and uses a technology that has eluded the likes of Daimler AG and General Motors Co. A homogeneous charge compression ignition (HCCI) engine ignites petrol through compression, eliminating spark plugs. Its fuel economy potentially matches that of a diesel engine without high emissions of nitrogen oxides or sooty particulates. Mazda's engine employs spark plugs under certain conditions, such as at low temperatures, to overcome technical hurdles that have hampered commercialisation of the technology. Executive Vice President Akira Marumoto called Mazda's engine technology the automaker's "heart". The engine is called SKYACTIV-X and Mazda had no plans to supply the engine to other carmakers, Marumoto said.