But how does a Prius Hybrd work? It has an electric motor that runs off batts that are charged when the gas motor is running. How is this saving the system any fuel? Would it not take more gas to power the car then? The addition of HHO to a cars system should produce the same effect as the electric motor does if you maintain a small set amount of power from your batt to perform the electrolsis.

As long as the HHO output can produce a little more power than the offset of the fuel used to produce the 12volts at 9 to amps then you have a gain. Thats the trick right? The gole is to offset the amount of fuel you use to power the motor with another source of fuel that you can produce within a system. Just like what the other Hybrds do by design.