HHO technology is one of the most debated topics when it comes
to this how the systems work. On one side of the debate are the
critics who simply state that this technology cannot work, despite
the fact that HHO generators are running on thousands of vehicles
as we speak.
On the other end of the spectrum are those who really don't care
how HHO technology works or doesn't work as long as it delivers
the expect gas savings. This group of people basically want to install
HHO kit, (or have a mechanic install it for them) and know how to
occasionally maintain it.
Then there is the middle ground group of people who want to know
how and why HHO technology works and they want to use it on their
own vehicles to save gas. With this said, there are a couple of
different explanations on how HHO generators work in cars to save
The first explanation is that HHO gas helps gasoline (or diesel
fuel) burn more cleanly inside the vehicle's cylinders. Hydrogen
ignites sooner and at a lower temperature than gasoline, so this
helps the fossil fuel to burn more cleanly with less emissions and
introduce a small amount of horsepower gain as well.
Advocates of this explanation for why HHO technology works this
way in automobiles will cite that gasoline internal combustion engines
are only about 28-percent efficient and that HHO gas helps them
to increase this efficiency.
There is another companion explanation as to why HHO technology
works in fossil fuel burning vehicles. Advocates of this theory
say the HHO gas displaces some gasoline or diesel fuel in the cylinders
since both HHO gas and gasoline are fuels injected into the cylinder
at the same time.
Since two objects cannot occupy the same space at the same time,
some gasoline is displaced with a lower temperature burning HHO
gas and thus you have displacement at work. Some people will tell
you that both of these theories are at work, while others will cling
to one point or the other.
For many, though how HHO technology works is academic. All they
know is that when they install an HHO device on their car, it gets
better gas mileage, runs smoother and has slightly more horsepower.
And, for most this is enough.