The “Power Manager” makes it easy for a driver to beat even the best drivers in the fleet putting him in total control of fuel consumption! Because the greatest fuel saver in the trucking industry today is the driver, the “Power Manager” will save you between 5 and 40% on fuel depending on your current driving skill/style. It will actually allow you to drive a little faster while consuming less fuel. Remember, “The most efficient drivers get about 30% better fuel economy than the least efficient drivers.”