AFM Plus

Enhanced 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. CARB EO D-751
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.

Get the most out of every mile.

Save up to $1700*

The average driver will save $250 a year. Over the lifetime of your vehicle that can really add up.

*based on V4 Max and an average vehicle lifespan of 7 years

Fast and easy setup

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.

Save 65 gallons of gas a year

If you drive 15,000 miles, you will save an average of 65 gallons of gas a year. Saving fuel means saving money and time, with a lot fewer trips to the gas station.
*based on V4 Max

Save the planet

If all AFM powered vehicles were optimized it could save up to 193 million gallons of fuel per year.
Less pollution and a lot less imported gas.



Range plugs into your vehicle’s OBD-II port located under your dashboard.

An OBD-II port is the same port that mechanics use to run engine diagnostics or to evaluate emissions.