Fuel Doctor LLC was established in 2009 with the purpose of bringing innovative technology to the automotive aftermarket, including power solutions that restore and enhance power efficiencies leading to potential improvement in fuel economy for most vehicles that are 24 months and older.
The company’s flagship product is the revolutionary FD-47, a power conditioner/fuel efficiency booster that plugs into the lighter socket/power port closest to the engine in order to restore the vehicle’s lost efficiency in power and fuel economy. The FD-47 has undergone certified laboratory and field testing by Test Car Engineering, Ledico/Bosch, and Kett Engineering. It is currently being sold around the world.
Fuel Doctor USA also offers FD-38 and FD-22 as optional accessories to provide the best user experience to the drivers.





