When I turn on the ignition to my car will the tanker begin to produce the HHO gas? Also, what happens when I just turn the car on to only use the radio, with no intention on driving it?
Yes, when you turn on the ignition the HHO Generator will go to work and start producing HHO gas. You can also prevent this by having your auto mechanic install a switch that will turn your HHO generator on and off, so if you decide to listen to the radio you can manually turn your off your HHO generator.