When the vehicle coasts, four of the eight cylinders are turned off to conserve fuel while using cruise control. (universitydodge.com)
A turbocharged four - cylinder, the engine switches seamlessly from four to two - cylinder mode to conserve fuel in light - load situations. (motoring.com.au)
Active Fuel Management shuts down two of the cylinders in light load conditions to further conserve fuel. (cheersandgears.com)