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Oil Filtration

Filtration – Your First Defence against Wear

Automotive experts agree dirt is the number one cause of engine wear. In fact, analysis by Federal-Mogul Corporation reports that 43.4 percent of all engine bearing distress is caused by dirt.

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. Along with 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, where they grind and gouge surfaces, altering clearances and generating more abrasive debris.

As this wear cycle continues, precision components become sloppy and fatigued until they fail altogether. Filtration is the key to preventing costly engine repairs caused by dirt, removing 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 offers a complete line of sophisticated filtration products designed to offer the best protection available against virtually all harmful engine contaminants.

Full-Flow Oil Filtration
AMSOIL, WIX and Donaldson Full Flow Oil Filters
Efficiency is the filter's ability to capture contaminants. The more efficient a filter is, the more contaminants it will remove from the oil.

AMSOIL Ea® Full-Flow Oil Filters have one of the best efficiency ratings in the automotive/light-truck market. They provide a filtering efficiency of 98.7 percent at 20 microns, while competitive filters demonstrate efficiencies as low as 51 percent (see graph).
AMSOIL Ea® Full-Flow Oil Filters     
Full-flow Oil Filters install directly into the line of oil circulation. The oil passes through the filter as the oil journeys between the oil pump and the engine. A full-flow filter must be able to remove and hold contaminants without obstructing oil flow to the engine.

Because they use a thin layer of porous filter paper, most filters on the market compromise the filtration of finer particles. Such 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, forcing the filter by-pass valve to open and allows unfiltered oil into the engine.

Cellulose fibers are inconsistent in size and shape.
 This allows more contaminants to pass through, resulting in higher restriction and lower capacity.
(Note: The red circles represent the diameter of a 20 micron particle)

A filter’s capacity refers to the amount of contaminants it can hold and still remain effective.

AMSOIL Ea® Full-Flow Oil Filters feature advanced full-synthetic media that traps and holds a greater amount of small, wear-causing contaminants compared to conventional filters. They provide extended service intervals for increased convenience, while helping reduce engine wear.

Small, consistent synthetic fibers trap smaller particles.
They also hold more contaminants, resulting in lower restriction.

Proper oil flow is essential to keeping engine parts lubricated at all times. Ea Oil Filters' synthetic fibers are smaller than the fibers used in traditional filters, allowing them to provide lower restriction.

During cold-temperature warm-up periods, an Ea Oil Filter allows the oil to flow through the filter more easily than a typical cellulose filter does. Lower restriction decreases engine wear.

AMSOIL Ea Full-Flow Oil Filters are made with premium-grade full-synthetic media. The strictly controlled processing of this media ensures accurate filter construction and is what allows Ea Oil Filters to deliver higher capacity and efficiency along with better durability.

Ea Oil Filters' full-synthetic media technology is resin-free to resist degradation from hot oil. It uses a wire screen backing that is pleated with the media for superior strength.

They are constructed with HNBR gaskets that are fully tested to extreme distances in numerous severe environments and feature fully tucked seams, a molded element seal, roll-formed threads and a long-lasting, premium-grade silicone anti-drainback valve.

AMSOIL Ea Full-Flow Oil Filters

Ea Oil Filters' full-synthetic media technology       

By-Pass Oil Filtration
By-pass Oil Filtration features a secondary filter with the purpose of eliminating nearly all contaminants from motor oil.

By-pass filters have high capacities and eliminate much smaller particles than full-flow filters, including soot. They reduce engine wear and increase oil volume, but their high efficiencies mean they also have higher restriction and must be used in conjunction with a full-flow filter.

AMSOIL Ea By-pass Oil Filters operate by filtering oil on a "partial-flow" basis. They draw approximately 10 percent of the oil pump's capacity at any one time and trap the extremely small, wear-causing contaminants that full-flow filters can't remove.

By-pass filters have a high pressure differential, causing the oil to flow through them very slowly and allowing for the removal of smaller contaminants. It is called by-pass filtration because the oil flows from the by-pass filter back to the sump and by-passes the engine.

This continual process eventually makes all of the oil analytically clean, reduces long-term wear and can dramatically extend drain intervals.

AMSOIL By-pass Oil Filters     AMSOIL By-pass Oil Filters

Because oil must be filtered quickly while removing most of the particles in the oil, the average full flow filter can only trap particles as small as 20 microns. With an efficiency rating of 98.7 percent at 2 microns, AMSOIL Ea By-pass Oil Filter provides the best possible filtration protection against wear and oil degradation.

The superior construction of AMSOIL Ea By-pass Oil Filters provides better sealing and increased longevity along with superior corrosion resistance. EaBP Filters have a marine powder coated exterior and their zinc-dichromate base plates increase rust protection. They also have a nitrile HNBR gasket and an orange silicone anti-drain valve.

AMSOIL’s high-efficiency by-pass filter element is also a soot removal device.

These filters remove 39 percent of soot contaminants less than one micron. Soot removal efficiency increases approximately 10 to 14 percent when the EaBP Filter is used in conjunction with a standard full-flow filter.

Ea By-Pass Filters use a synthetic/cellulose sandwiched media. The inner layer of the element is composed of a highly efficient cellulose media covered with a full synthetic media outer layer.

synthetic/cellulose sandwiched media

AMSOIL Ea By-Pass Oil Filter typically filters all the oil in the system several times an hour. At normal operating RPMs it will filter all of the oil in a typical five quart sump in less than 10 minutes. The continual filtering process eventually makes all the oil analytically clean, reducing long-term wear.

The increased fluid system capacity and filtration life provides improved oil cooling and ensures that equipment constantly runs on clean oil. Engine efficiency is increased, providing extended engine life.

By cleaning the oil so completely, the EaBP Filter not only prolongs engine life but also the life of the oil itself. With the AMSOIL Ea By-Pass Filter, oil changes can be extended well beyond normal, in many cases virtually indefinitely, depending upon the conditions and severity of use.
By-Pass Filtration Benefits

  • Dramatically Extended Drain Intervals
  • Improved Oil Cooling
  • Increased Filtration Capacity and Life
  • Increased Fluid System Capacity
  • Efficient Small Particle and Soot Removal
  • Significantly Extended Engine Life
  • Equipment Constantly Runs on Clean Oil
  • Increased Engine Efficiency
  • Remove Particles Less Than One Micron

Dual-Guard By-Pass Oil Filtration
The AMSOIL Dual-Guard By-Pass Oil Filter links two AMSOIL Ea By-Pass Filter Elements together for engines with sump capacities greater than 20 quarts.

                      Dual-Guard By-Pass Oil Filter

Dual Remote: Patented Protection
Available only from AMSOIL, the Dual Remote Oil Bypass Filtration System replaces conventional full flow filters, mounting in any convenient location in the engine, and gives full flow and by-pass oil filter protection.
               Dual Remote Oil Bypass Filtration System
Dual Remote Oil Bypass Filtration System

With the AMSOIL Dual Remote Oil Bypass Filtration System, filter changes are quick, clean and easy. It also increases an engine's oil capacity, helping oil work better, not harder.

Marine Dual Remote Filtration System
The effects of marine engines running at or near full throttle after extended periods of non-activity include: high operating temperatures and increased potential wear on engine components.

Dual remote filtration is a highly efficient filtering process capable of removing most of the particles in the 5-20 micron range, those that cause the most wear, and also has the ability to effectively remove particles down to one micron in size.

AMSOIL Marine Dual Remote Oil Filtration System offers a clear advantage by providing better oil filtration, increased oil capacity and longer oil and filter life. It offers easily accessible remote mounting capability for a full-flow spin-on oil filter and a spin-on by-pass oil filter.

This unique combination of both full-flow and by-pass filtration on a single mounting manifold is the only system of this kind designed specifically for marine applications.
Marine Dual Remote Oil Filtration System

The additional hoses, fittings, filters and aluminum mount assemblies also allow the engine oil to dissipate heat more efficiently as it passes through the filtration system, offering increased oil cooling capabilities and extending the service life of both the engine and the engine oil.

AMSOIL Marine Dual Remote Oil Filtration System is designed to be used in harsh marine environments.

The hose fittings are coated with a 3 ml layer of Alumiplate™ and 1 ml of zinc and yellow chromate. This Alumiplate coating is 10 times more corrosion resistant than standard zinc and yellow chromate plated fittings. In addition, the fasteners and mounting bracket are stainless steel and the hoses are U.S. Coast Guard approved.

Depending on the boat owner's hours of use, the improved filtration of the Marine Dual Remote System, along with the use of AMSOIL synthetic lubricants, could completely eliminate oil and filter changes during a typical boating season.

With marine engines located in a relatively confined and remote space within the watercraft, ease of filter access and reduced oil spillage are also significant benefits.

The Marine Dual Remote Filtration System represents the cutting edge of filtration technology, another example of the AMSOIL commitment to providing quality innovations that benefit consumers everywhere.

Full-Flow Synthetic Oil Filters
AMSOIL By-Pass Filters and Mounts
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