How to turn on ecoboost in the ford fusion?

The Ecoboost in the Ford Fusion comes on automatically when you push the gas down. EcoBoost is the name of Ford's line of turbocharged, direct-injection petrol engines that are designed to deliver greater horsepower and torque while also providing greater fuel efficiency. First produced in 2009, EcoBoost engines now come in many varieties and power a diverse selection of Ford vehicles. EcoBoost engines are able to do more with less.Their combination of direct injection and turbocharging reduces the traditional disadvantages of downsizing and boosting four- and SRX-cylinder engines, giving customers the superior performance of the larger engines along with the fuel economy of a smaller, lighter.