Researchers at the Massachussets Institute Of Technology found that giving an internal combustion engine a hydrogen boost added 30% to mpg of a car in early 2006. See article HERE.
The Brown’s Gas way to supply the car engine with hydrogen was also developed in 2006. It has been sold and used for two years. Once the capital cost is paid, the fuel to make the hydrogen is free – H2o.
And then go and read the evidence. You will be the ones to feel foolish afterwards.