The technology is based on an innovative and revolutionary method that is designed to save up to 70% of the fuel consumption of any type of car. Fuel-Saver Shark starts working the moment you turn it on and so saves fuel and money. Should be included in the cigarette lighter adapter.Fuel-Saver shark optimizes and improves the circuit. It also provides your car stable voltage and so your car runs better with less fuel. The benefit of stabilizing the electrical system of the car, the engine is fed a constant spark. The result is less fuel car, less money for fuel, and cleaner emissions