I am thinking about running at least one HHO generator on my wifes car. I have seen packages for about $125 on the internet. They are claiming about 50% increase in mpg.
A guy came into work the other day with a 00 bonneville that he put a single HHO generator on. He has seen a 10-12% increase in mpg with only that. I have read that it is recommended to use one generator per 2 cylinders.
I am just looking for some input before I try it.
Thanks