EcoBoostST4G205L is a turbocharged engine produced by Ford Motor Company. On the basis of traditional gasoline engines, EcoBoost engines further add the advantages of fuel injection, turbocharging and dual independent variable valve timing system. ECOBOST4G205L background EcoBoost not only ensures surging power output, but also optimizes fuel economy by up to 20 percent and reduces CO2 emissions by 15 percent. The main advantage of the Ford EcoBoost engine is that it effectively reduces engine displacement. Replace the traditional naturally aspirated engine with a small displacement engine without sacrificing any power output. Turbochargers can increase torque by 50%, so while maintaining strong power, it can significantly reduce engine displacement, optimize fuel consumption and exhaust emissions, Ford is the first EcoBoost engine launched in 2009, less than 10 years, this glorious family has developed from 1L to 3.5L a total of 7 engines.