Powered by vehicle’s electricity, the on-demand HHO system uses electrolysis of water and biodegradable electrolyte. The result of the electrolysis is obtaining pure H2 and O2 gases. This mixture of H2 and O2, also called oxy-hydrogen is then conducted to the air-intake, where it is burned together with the regular fuel of the vehicle. As this gas has a higher burning speed (higher octane), it enhances the burning of the fossil fuel used. The almost complete burning gives an increased fuel economy, and practically no harmful emissions (NOx, CO, CO2, HC, SO2 are reduced by up to 80%). HHO gas acts only as accelerator of the burning process inside the motors. Due to the enhanced burning, there are less carbon black accumulations, therefore the engine life and engine oil life is extended also.