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.

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.