Hyundai Debuts Sonata Hybrid at New York Show
Green Car Congress
MARCH 31, 2010
6-speed automatic transmission with an improved efficiency electric oil pump. Comparison of Mid-size Hybrid Sedans. To further improve fuel economy, all of the Theta II major driveline and cooling system components have been optimized to reduce friction, while the crankcase has been filled with low friction oil. Theta II 2.4-liter
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