The Importance of Engine Filtration and Maintenance
Engine Wear
Automotive experts agree that dirt is the number one cause of engine wear. Federal-Mogul Corporation, in analyzing the cause of engine bearing failure, indicates that 43.4 percent of all engine bearing distress is caused by dirt.
Engine dirt particles are so small, mere dust specks -- and an engine is a highly sophisticated piece of machinery, crafted from the most durable metal alloys. How can these minute particles bring down such a high-tech giant?
The answer lies in the fact that dirt particles are extremely abrasive. They consist of razor-like flakes of road dust and airborne grit drawn into the engine through the intake manifold, as well as manufacturing scarf and wear metal particles generated inside the engine. These particles are carried by the oil into the precision clearances between bearings and other moving parts. Once they work in between these parts, they grind and gouge surfaces, altering clearances and generating more abrasive debris. As this wear cycle continues, precision components become sloppy and fatigued. Finally, they fail altogether.
Filtration is the key to preventing costly repairs caused by engine dirt. Filtration removes contaminants by trapping and holding them outside the system of oil circulation. In order for a filter to be truly effective, it must be able to capture contaminants of all types and sizes. AMSOIL has developed a complete line of sophisticated filtration products designed to offer the best protection available against virtually all harmful engine contaminants.
Air Filtration
An engine "breathes" air to mix with fuel for combustion - about 9,000 gallons of air for every one gallon of gas. And there is a lot more dust and grit in the air than is generally realized - over 400 tons of suspended dirt in a cubic mile of air over a typical city, and the concentration can be much higher in rural areas where there is frequent travel over unpaved roads.
The air filter is the
first line of defense against the abrasive airborne grit that can
cause serious damage inside an engine. But in order to do the job
right, an air filter must effectively filter the dangerous
particles out of the incoming air without obstructing the vital
flow of air that sustains the engine. 
Conventional air filters use pleated paper as the filter media. The paper surface quickly becomes obstructed with dirt, reducing engine air intake. Inadequate air intake inhibits combustion, leading to poor engine performance and low fuel efficiency.
AMSOIL uses thick layers of polyurethane foam in its 2-Stage Air Filter construction. This foam is wetted with a light coating of "tack" oil. As air is drawn through the honeycomb network of oiled fibers, dirt particles are trapped by the oil and only clean air emerges from the foam and passes into the engine.
Because the foam is much thicker than paper, the filtering area is more spread out and air is able to pass through it easily and quickly.
The Last Air Filter Your Car Will Ever Need
The AMSOIL 2-Stage Foam Air Filters are designed to last indefinitely with proper service. Under normal driving conditions they may be used for 25,000 miles or one year, then cleaned, reoiled, reinstalled and used again for thousands of additional miles of trouble-free service.
When a paper filter is full of dirt, the only option you have is to throw it away and replace it with a new one. This can be costly over several years because recommended change intervals can be relatively short depending on driving conditions.
Oil Filtration
Full-flow oil filters install directly into the line of oil circulation. The "full flow" of oil passes through the filter as the oil journeys between the oil pump and the engine.
A full-flow filter must be capable of removing and holding contaminants without obstructing oil flow to the engine. In order to achieve this, most filters on the market compromise the filtration of finer particles by using a thin layer of porous filter paper. In addition, these filters have almost no extended cleaning ability since they have a low capacity for storing dirt.
These "surface-type" paper filters quickly become restricted as debris builds up on the paper surface. When this happens, the filter by-pass valve opens and the filter begins to allow unfiltered oil into the engine.
The AMSOIL ASF Series Oil Filter's depth type lofted fiber media traps and holds dirt throughout its entire thickness. The AMSOIL Oil Filter provides nearly 35 percent longer life and over 30 percent more capacity than conventional filters offer. The AMSOIL Oil Filter also allows higher oil flow rates than conventional filters allow. Faster oil flow is critical to contemporary engines. Contemporary engines require about twice the engine flow rate of older engines and if their oil demand is not met with filtered oil, it will be met with oil that bypasses the filter. Unfiltered oil carries wear-promoting contaminants throughout the engine.
By-Pass Oil Filtration
An average full flow filter traps particles as small as 20 microns. The filter cannot remove finer particles because the oil must be filtered quickly while removing most of the particles present in the oil.
However, particles in the 5 to 20 micron range cause up to 60% of all engine wear. The AMSOIL By-Pass Oil Filter traps particles in the 5 to 20 micron range. In fact, the AMSOIL By-Pass Oil Filter traps particles smaller than 1 micron.
Unlike the full-flow filter, a by-pass filter is situated outside the main line of oil circulation. The by-pass filter taps into the main line, bleeding off and cleaning only a portion of the oil at any one time. The by-pass filter retains the oil longer and does a thorough job of removing contaminants without the worry of obstructing oil circulation.
The AMSOIL By-Pass Filter traps particles smaller than one micron in diameter, leaving oil analytically clean and free from harmful dirt particles. And even though the AMSOIL By-Pass Filter only draws about 10% of the oil in the system at one time, it will filter all the oil in a six-quart system in about five minutes (at an engine speed equivalent to 45 miles per hour).
Water Removal
Engines accumulate water from intake air and from fuel combustion. Water promotes rust and corrosion in engines. Water also reacts with oil additives and reduces additive effectiveness. Water is particularly harmful in cars that are not driven often.
The unique composition of the AMSOIL By-Pass filtering media allows for the removal of water from the engine oil. Even water that has been thoroughly churned into the oil by mechanical agitation is separated and safely stored in the cartridge, or filter element, eliminating the risk of oil degradation and engine rust and corrosion.
Reduces Oil Changes
By cleaning the oil so completely, the AMSOIL By-Pass Oil Filter prolongs not only engine life but also the life of the oil itself. With the AMSOIL By-Pass Oil Filter, oil changes can be extended well beyond normal, in many cases indefinitely, depending upon the conditions and severity of use.
Dual Remote: Patented Protection
Available only from AMSOIL, the Dual Remote Oil Filtration System replaces your conventional full flow filter, mounting in any convenient location in your engine, and gives you full flow and by-pass oil filter protection, With Dual Remote, filter changes are quick, clean and easy. And Dual Remote increases your engine's oil capacity, helping your oil work better, not harder.
Oil Analysis
By analyzing used engine oil, a qualified lab can determine the degree of protection the oil is delivering and make certain the oil has not been contaminated. Oil analysis can also detect impending engine failure.
The AMSOIL TRIGARD Plan offers motorists AMSOIL Synthetic Motor Oil, AMSOIL Oil and Air Filters and oil analysis for their personal vehicles, such as passenger cars or motor homes. The AMSOIL G-1318 (1 kit), 1319 (10 kits), and 1320 (25 kits) offer oil analysis for heavy duty diesel engines in commercial use. They may also be used for passenger car oil analysis. Oil analysis helps motorists derive the longest life from their AMSOIL Synthetic Motor Oil and from their engine.
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