Oil Filter Basics
Clean oil is important to engine durability and performance. Oil has to clean, lubricate, and cool the engine while it circulates. To be effective it must be filtered as it circulates.
The filter is attached to the engine sump, that contains the oil pump. Full flow type filters direct all the lubricant output from the pump to the filter.
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The main function of oil filtration is to remove the dirt and contaminants brought into the oil and avert them from reaching vital engine components without limiting normal oil flowing to the points of the engine requiring good lubrication. Sources of corruption include wear contaminants from the abrading surfaces in the internal engine, blow by vapors leaking past the rings and pistons and degeneration of the oil itself. An oil filter must execute well in the areas of capacity, efficiency, flow and life.
Ensuing on the path to transform the auto filtration market, AMSOIL has introduced the new Ea Oil Filter line of oil filters. Ea Oil Filters have incorporated advanced synthetic nanofiber technology, ma
king them the best efficiency oil filters that are available for the auto and truck market.
Cutting Edge Media Technology
Blended medias and Cellulose found in most filters have substantially larger fibers than the nanofibers in the AMSOIL EaO Filters. Most oil filters also have bigger spaces among their fibers. This can cause contaminants to build up in the media and plug up the oil flow, this results in less capacity and higher restriction.
The tiny fibers in our synthetic media also has a uniform shape and size. This gives you greater capacity and efficiency than oil filters with cellulose filters, aslo better durability. AMSOIL Ea Oil Filters afford a higher degree of engine protection, and extended miles between filter changes.
Supreme Efficiency
Efficiency is the filter's capability to trap contaminants. The more efficient the filter is, the greater the contaminants it will remove from your oil. To allow a filter to be more efficient the gap between fibers contained in the media are made tiny, building more resistance and restricting the oil's capability to flow through the filter. Accomplishing maximum efficiency with limited resistance is crucial to good filtration.
Considerable testing shows the AMSOIL Ea Oil Filters can achieve a near perfect efficiency rating. Exclusive new technology that is used in the AMSOIL EaO Filters can provide filtering efficiency to 98.7% at 15 microns. AMSOIL EaO Filters are the most efficient oil filters available for autos and light trucks.

Maximum Filter Capacity
Filter capacity is the load of contaminants a filter will hold and still be effective. When an oil filter reaches max capacity the motor oil continues to pass through unfiltered, leaving adverse dirt and contaminants in the oil. As a filter reaches max capacity it also is at the end of its usefulness and must be replaced.
AMSOIL EaO Oil Filters have a far improved capacity than other filter lines. When used with AMSOIL synthetic oils in normal service, AMSOIL EaO Oil Filters are warranted to continue effective for 25K miles or 1 year, whichever comes first.
Durable Premium Construction
AMSOIL Ea Motor Oil Filters are made with superior grade full synthetic media. The carefully controlled engineering of this synthetic media establishes accurate synthetic fiber construction and permits AMSOIL Ea Oil Filters to deliver efficiency, higher capacity, and better durability.
During the service life of an ordinary cellulose oil filter, hot lubricating oil will corrupt the resins that attach the media. AMSOIL EaO Oil Filters' synthetic media technology has a pleated wire screen backing for superior strength.

AMSOIL Ea Oil Filters are built with HNBR nitrile gaskets and are thoroughly tested to extreme distances in many severe environments. AMSOIL filters also have a molded element seal, fully tucked seams, a long-lasting premium grade silicone anti drain, and valve roll formed threads.
Improved Oil Flow
Adequate oil flow is important to keep internal engine parts lubricated efficiently at all times. Filters without adequate flow can cause engine damage and even catastrophic failure.
Oil flow is reduced as the gaps in the filter media is produced smaller to provide better filter efficiency. The nanofibers in the AMSOIL Ea Oil Filters allows the greatest efficiency without reducing flow. This can provide unsurpassed cold weather start performance and guarantees the proper level of lubrication throughout the engine.


AMSOIL Filter Extended Service Intervals
The new AMSOIL EaO Oil Filters are warranted for 25K miles or 1 year, whichever comes first, when used with AMSOIL Synthetic Oil in gas and diesel cars and trucks in normal operating service. They are warranted for 15K miles for more severe service. This warranty coincides with the AMSOIL 25K mile, one year synthetic oil drain interval, this adds even more convenience for vehicle owners by combining routine maintenance.
Check out AMSOIL's By-Pass Oil Filters. They filter to 1/10th of a micron and filter all the oil completely through the By-Pass filter every 5 minutes at 45 mph. It's like a fresh oil change every 5 minutes!
AMSOIL EaO Oil Filters are recommended for up to two times longer than normal factory recommendations for commercial and fleet vehicles, RVs and fleets using diesel engines, not to exceed 60K miles for heavy duty highway diesel applications.
AMSOIL EaO Oil Filter Q & A
Why is AMSOIL EaO Oil Filter synthetic media superior to cellulose based filtration media?
Synthetic nanofiber media has sub-micron diameters (nanofibers) and tiny inter fiber gaps which cause more contaminants to be captured on the outer surface of the media. Cellulose fibers are bigger and have larger gaps between the fibers, allowing the contaminants to build up inside the media and restrict the flow path, causing lower capacity and higher restriction.
Why does AMSOIL EaO Oil Filters use wire mesh?
The synthetic nanofiber media needs support.
Will AMSOIL EaO Oil Filters remove soot?
AMSOIL EaO Oil Filters were engineered to meet the oil filtering needs post EGR engine development. These are full flow oil filters and are not engineered for soot removal.
How long do AMSOIL Ea Oil Filters last?
AMSOIL EaO Oil Filters are warranted for 25K miles or 1 year, whichever comes first, when used with AMSOIL Synthetic Oil. AMSOIL does recommend changing the engine oil filter any time you change oil.
What is AMSOIL's oil filter warranty?
AMSOIL Inc. warrants that our filtration products are adapted for use according to AMSOIL Inc's use recommendations and guarantees the products to be free of defective materials, design and workmanship.
What vehicles are the AMSOIL EaO Oil Filters designed for?
AMSOIL EaO Oil Filters are designed for cars and trucks equipped with gas engines and some diesel trucks and pickups.
If AMSOIL does not have an EaO oil filter for my car, what do I do?
AMSOIL will continue to have other oil filtration products for auto and truck applications. AMSOIL will sell name brand oil filters for most applications that are not covered by AMSOIL labeled products.
How do I cross reference my current oil filter?
The most up to date source for filter application information is the, click on the Online Product Application Guide to find your filters:
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What about the auto and light truck filters you do not cross reference to?
AMSOIL currently has a complete line supplemental filters for auto and truck applications by Wix.
What AMSOIL products are recommended for your vehicle?
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How long can I go between synthetic oil changes?
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Click Here to shop for your AMSOIL Products and follow these instructions.
1.) Click on the Store button to be taken to a list of products.
2.) Find the product catagory you are interested in.
3.) Choose the product you would like to find out about. An Oil & Air filter guide is available on the right column.
4.) You will be taken to a purchase screen which lists pricing and has an add to cart button. Use the drop down menu called "Select Product Category" to find a specific product such as Synthetic 10W-30 Motor Oil.
5.) To find out more information on the product click on the Product Description.
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