Just a brief description of how it actually works. This can save you a lot of headache when it comes to all the fake fuel saving devices out there especially when you know how it really functions.

Combustion
Combustion is a chemical process in which a substance, called fuel, reacts rapidly with Oxygen and gives off heat. The source of oxygen is called the oxidizer, which can be a solid, liquid or gas. The internal combustion engines, found in modern motor vehicles, use air for a source of oxygen, which is a gas. The air contains 21% oxygen, 78% Nitrogen and 1% trace gases.
O (oxygen) and N (nitrogen)
The Fuel

Gasoline and Diesel Fuel are Hydrogen-Carbon fuels. The various elements that make these fuels are called hydrocarbons.


H (hydrogen) and C (carbon)
Ignition

To cause combustion to take place in the internal combustion engine the fuel is mixed with air and ignited. In a gasoline engine the source of ignition is a spark plug. In a diesel engine the source is compression. This results in the rapid expansion of the gas, which causes heat that is the kinetic energy (energy in motion) that drives the piston down and thus propels the vehicle. During combustion new chemical substances are created from the fuel and the oxidizer. These substances are called exhaust.
Re-association



H2O (water)for every liter of fuel that is burnt just under a liter of water is made during the combustion process. , CO2 (carbon dioxide), CO (carbon monoxide), VOCs (volatile organic compounds) and NOx (oxides of nitrogen)
Water is one of the most abundant elements on earth and is essential for human life.

Carbon Dioxide
CO2 is not a pollutant; it is a naturally occurring element of earth’s atmosphere. The oceans of the world, earthquakes, and other phenomena produce huge amounts of CO2 continually. By comparison, auto engines emit very little. C02 is caused by the incomplete combustion of fossil fuels due to not enough oxygen being available fast enough to react completely with all of the carbon available.

Carbon Monoxide
is a gas that is clear, tasteless and odorless. Heavy concentration and lengthy exposure to CO is fatal to human beings. CO is caused by the incomplete combustion of fossil fuels.


Volatile Organic Compounds are chemicals that evaporate when exposed to air. VOCs are a contributing factor in air pollution. VOCs contain hydrocarbons (HC) that are lighter than air. These hydrocarbons mix with the NOx emissions to create Smog. Exposure to, or ingestion of, VOCs in high concentrations can cause various health effects, including cancer.


Oxides of Nitrogen molecules react to sunlight; turn reddish-brown and form ground level ozone or smog. NOx contain substances that are highly toxic and can cause lung damage or even death. As long as the combustion chamber temperature remains below 2300 degrees Fahrenheit, the Nitrogen elements will not separate. However, as pressure increases closer to top dead center (TDC) the temperature rises above 2300 degrees and Nitrogen will separate into individual Nitrogen elements. One individual Nitrogen element will oxidize with one or two Oxygen elements forming a bond known as NOx.

  • Obviously the solution would be to keep cylinder temperatures below 2300 degrees Fahrenheit to reduce this.


So when you look at claims of products put them up against the facts.