[mylife]

I know a guy that was working on a way to split H2O to get free Hydrogen.

He set his car on fire...

[editor-surveyor]

>> “I know a guy that was working on a way to split H2O to get free Hydrogen.” <<

.
More correctly “Browns Gas.”

There is a clown up in Canada that sells kits to do that.

It will improve your fuel economy a little, but it is hardly worth the effort.