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Medium Gasoline Engine (MGE) is a medium-displacement 4-cylinder gasoline engine developed by Adam Opel AG and marketed as 'SIDI Ecotec'. Production began in late 2012 at Szentgotthárd, Hungary. The engine features Start/Stop and reduces fuel consumption and CO2 emissions by 13 percent comparing to the predecessor, while maintaining Euro 6 emissions standards. A turbocharged ''Eco'' variant delivering @ 4250 rpm and @ 1650-4250 rpm (overboost ) has been introduced at 2012 Moscow International Automobile Salon (MIAS); a ''Performance'' version with maximum torque and peak power will also be available. Each version features unique turbine aerodynamic, and aggressive boost strategies improve low-end torque.〔 The high-performance turbocharged 1.6 L (1598 cc) engine with central direct injection has bore and stroke, with cylinder pressure of 130 bar and compression ratio of 9.5:1 for ''Performance'' version and 10.5:1 for ''Eco'' version. It uses a grey cast-iron block with die-cast aluminum bedplate, aluminum cylinder head, chain-driven DOHC valvetrain with hydraulic tensioners, dual continuous variable cam phasing, and forged steel crankshaft. The engine has twin balance shafts and specially designed cam cover to improve NVH, while optimized compressor geometry, acoustic resonators and overall air handling help reduce noise by 2 dB. Centrally placed injector allows optimal operation in both stratified and homogeneous charge ignition. Optimized main bearing journal diameter, roller cam followers, and PVD coated piston rings reduce friction. Starting in 2013, the engine began to replace turbocharged 1.6 L Family I Ecotec engine in Opel cars, and in 2014-2015 it will replace naturally aspirated 1.6 L and 1.8 L Family 1 engines in Chevrolet cars. The 170 PS ''Eco'' version of the engine (code A16XHT) is used in: *2013 Opel Insignia *2013 Opel Astra J *2013 Opel Cascada *2013 Opel Zafira Tourer The 200 PS ''Pro'' version of the engine (code A16SHT) is used in: *2014 Opel Astra J GTC *2014 Opel Cascada *2014 Opel Zafira Tourer *2016 Buick Cascada (code LCW) ==See also== *GM Medium Diesel engine *GM Small Gasoline Engine *GM Family 1 engine *List of GM engines 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「GM Medium Gasoline Engine」の詳細全文を読む スポンサード リンク
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