it's fine.. this is a relatevly new technology. Can by installed in any car that runs on Gasoline, Ethanol, Natural Gas or Diesel

Here's one website: http://www.fuelfromh2o.com/specs.html

Here they explain all you need to know about this.

I bought the Series 11a Dual Brick HHO Gen

You could also in YouTube and look for 'HHO'

Another popular website is water4gas.com

A friend of mine already instelled one on his Defender and got 45% increase in MPG

cheers,