Active Fuel Management, available on most GM trucks and SUVs, helps lower fuel costs by enabling V8 engines to behave like four-cylinder engines when cruising with light loads, while seamlessly unleashing their full muscle whenever needed. The AFM+ device allows the vehicle to run in 4 cylinder mode more often, for improvements in efficiency.

Features

Simply plug in Range into your onboard OBD-II port and it instantly begins working with your Active Fuel Management to optimize your fuel economy.

Range AFM Plus optimizes your performance by better identifying your driving situations helping you get more miles out of a gallon of gas.

The average driver will save $250 a year.