The Positive Crankcase Ventilation (PCV) valve is one of the oldest emissions control devices used to route unburned crankcase blow-by gases back into the air intake manifold where they can be re-burned. As the engine runs, the crankcase (containing the crankshaft and other parts) begins to collect combustion chamber gases which leak between the piston rings (surrounding the pistons) and the cylinder wall. These combustion gases are sometimes referred to as "blow-by" because the combustion pressure "blows" them "by" the pistons. These gases contain compounds harmful to an engine, particularly hydrocarbons, which are unburned fuel and carbon dioxide. It also contains a significant amount of water vapor and if allowed to remain in the crankcase or become too concentrated, will begin to condense out of the air within the crankcase and form corrosive acids and sludge on the engine's interior surfaces. This process harms the engine by clogging small inner passages causing overheating, poor lubrication, and high emissions levels. To keep the crankcase air as clean as possible, a ventilation system is required.
The PCV valve satifies this requirement and does ventilate these harmful blow-by contaminants by re-routing them back into the firing chamber via the air intake manifold. However, gasoline engines were never designed to consume these contaminants or to burn oil. As the gasoline engine operates, it produces a vacuum in order for the PCV valve to properly function or open. The engine cannot burn 100% of the oil as it has a much higher N point (Flash Point) than gasoline. The unburned oil turns to carbon in the engine’s firing chamber and what does not stick to the pistons, cylinder heads, or valves goes out the exhaust and into the catalytic converter for further burning. It is not uncommon for the catalytic converter to become inoperative within the first few thousand miles and at some point must be replaced in order for the car to pass smog inspections.
The Fuel and Air Saver™ is a carbon separation system that is installed between the PCV valve and air intake manifold. The Fuel and Air Saver™ removes all “heavy hydrocarbons” exiting the engine through the PCV valve by using a patented separator system, allowing only light hydrocarbons (unspent fuel) to pass through to the air intake manifold. The removal of “heavy hydrocarbons” from the firing chamber allows the engine to function as it was designed. Also by eliminating the source of carbon you eliminate the wear and tear on the catalytic converter - enabling the engine to run more efficiently and cleaner. Carbon also acts as an insulator and prevents a complete burn.
By removing the oil from the fuel/air mixture, the owner may feel an increase in power and field tests have shown a fuel savings after a short period of time. Gasoline is a solvent and actually begins cleaning the engine by eroding away carbon buildup. This cleansing action helps to restore many internal parts of the engine. By removing the carbons from the piston heads permits a more efficient fuel and air combustion and removes the insulation effect which prevented a complete burn. One of the by products of having the Fuel & Air Saver™ installed is longer engine oil life, which equates to longer engine life.
