Importance of Engine Filtration

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The Importance of Engine Filtration


Compared to microscopic dirt particles, your engine is a Goliath, roaring with heat and energy as it converts raw fuel into horsepower. But despite all this power, your engine is extremely vulnerable to the threat of microscopic engine dirt. In fact, if unchecked, this tiny menace will dramatically erode your engine’s performance and can eventually cripple it beyond repair.

THE PROBLEMSdonaldson_logo_sm

Engine Wear – Automotive experts agree that dirt is the number one cause of engine wear. At first glance, it does not seem possible. Engine dirt
particles are so small – mere dust specs – and an engine is a highly sophisticated piece of machinery, crafted from the most durable metal alloys. How can these tiny 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 air intake, 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 progressively sloppy and fatigued until they fail altogether.Abrams battle tank dominance requires nanofiber filtration technology

Oil Degradation – In addition to physically assaulting engine components, dirt and other contaminants work to degrade the oil that provides vital engine lubrication. Sooty particles generated during combustion can be forced past piston rings and into the oil. These soot particles will bind together to act like tiny sponges, absorbing critical additives and shortening oil life. Soot also wreaks havoc with viscosity by causing oil to thicken. And in the presence of moisture, common by-products of combustion will react chemically to produce corrosive and rust-producing acids. (Here’s how to pick the best engine oil.)

THE SOLUTIONSAir filtration fiber diameter comparison - standard media with nanofiber overlay

AMSOIL Oil and Air Filters – Filtration is the key to preventing costly repairs caused by engine dirt. Filtration is simply a method of removing contaminants by trapping and holding them outside the system of oil circulation. In order for filtration to be truly effective, however, it must be able to capture contaminants of all types and sizes.

While no OEM has yet specified air or oil filter efficiencies, and engine life has continued to suffer with 50-year-0ld cellulose/cotton filters, AMSOIL partnered with the leader in military/aerospace nanofiber filter technology to develop a lineup of sophisticated nanofiber filter products designed to offer the best protection available against virtually all harmful engine contaminants. With an AMSOIL EaA nanofiber Air Filter, an AMSOIL EaO nanofiber Oil Filter and an AMSOIL By-Pass Oil Filter, your engine can run long and hard with outstanding protection against engine dirt.


Full-flow 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 engine. A full flow filter must be capable of removing and holding contaminants without obstructing oil flow to the engine.

Most conventional filters on the market use a thin layer of porous filter paper as their filtration media, which compromises their ability to catch fine particles. In addition, these filters have almost no extended cleaning ability since their media have a low capacity for storing dirt.

Because of their limited filtering area, most conventional paper filters display good flow characteristics but are restricted in their capacity and longevity. They become obstructed relatively quickly, opening the relief valve and allowing unfiltered oil into the engine. Their lightweight construction also makes them susceptible to degradation, and the common media binders begin breaking down after six months – eventually releasing both wear particles and media fibers into the oil system.

AMSOIL EaO NANOFIBER FILTERS WORK BETTER – LONGER!AMSOIL EAO Exploded nanofiber Filter construction and design

AMSOIL EaO filters are the only filters in the automotive market which use nanofiber media, and produce a 70% wear-rate reduction compared to other full-flow filters.  Tested according to the Society of Automotive Engineers industrial standards, EaO filters feature an advanced nanofiber media and ultra-premium construction that filters the oil flow of even the hardest-working engines with superior capacity, efficiency and service life.  They completely outclass the conventional paper oil filters which have been used for the last 40 years, in every way.  AMSOIL EAO15k filters may be used for intervals of 15,000 miles or one year (whichever comes first), and EAO25k filters last one year or 25,000 miles in gasoline engine applications.



Absolute Protection from Engine Dirt

Assurance of Analytically Clean Oil

WHY ANOTHER FILTER?  Because even the best full flow-filter can’t do it all.

Any full flow filter must allow oil to pass through it quickly to keep the engine from starving for oil. Advances in auto technology and more compact engine designs place increasing demands on these filters; to keep from creating a circulation bottleneck they filter out only the coarser particles, and feature relief valves that open when the engines’ demand for lubrication can’t be ignored.

But the smallest grit that passes through- road dust, manufacturing scarf, and engine metal-flake in the 5-20 micron range – accounts for up to 60% of all engine wear. These microscopic particles closely match the precision clearances between critical engine components; they can enter the spaces between bearings, rings, and other components, to damage metal surfaces, altering tolerances, fatiguing components and generating additional debris.

Automobile engines are also susceptible to damage related to water formation, something a full flow filter is powerless against. Water enters the oil either as blow-by combustion product of fuel ignition, or as condensed moisture from air drawn into the engine through the air intake. Water causes metal surfaces to rust; it also reacts with other blow-by contaminants to produce corrosive acids that attack the engine, contributing to further friction, wear, debris, and oil degradation.
AMSOIL Engine Oils are Devoted to protection

The AMSOIL Solution: Nanofiber By-Pass Filtration

Unlike a full-flow filter, the AMSOIL By-Pass Filter is situated outside of the main line of oil circulation; it taps into the line to bleed off and clean only a portion of the oil at a time. The AMSOIL By-Pass Filter retains the oil longer and does a more thorough job of removing contaminants without obstructing flow. You still need a full-flow filter, of course, because oil must circulate continuously. But with an AMSOIL By-Pass Filter drawing 10% of your system’s capacity, all the oil in a six-quart system will be filtered to analytical purity in about five minutes, at an average engine speed equivalent to 45 mph.

The differences between the AMSOIL By-Pass Filters and others are the unique design of the filtering media and the patented construction of the filter element. Our high-capacity filtration medium is a special blend of virgin wood and cotton fibers formed into discs, stacked, and compressed, covered with a full-synthetic nanofiber media outer layer. The center tube is all-steel, perforated for oil flow and wrapped with a fine mesh cotton screen. All dirt particles down to one micron in size are trapped, and the medium’s thirsty cellulose fibers can remove up to a pint of water.  Channeling is eliminated with the inclusion of a hydraulic follower plate activated by a sophisticated internal pressure system.  ISO 23556 testing determined that these nanofiber Ea bypass filters are also effective soot-removal devices, removing 39% of soot contaminates under one micron in size.

The AMSOIL Dual-Remote Oil Filtration System- For Optimum OIL FILTRATION and Maximum SERVICE ACCESSIBILITYAMSOIL BMK Dual Remote Oil Filter Display

The AMSOIL Dual Remote Oil Filtration System replaces the standard full-flow system with a combination full-flow/by-pass system using a remote mounting assembly.

The mount couples an AMSOIL Full Flow Oil Filter with an AMSOIL Spin-On By-Pass Filter; it takes oil from the engine and returns it without the use of multiple fittings or extra return holes in the oil pan or valve cover. The mount and filters are installed in an accessible area of the engine compartment.

A specially-manufactured, spin-on casting with threading adapters is simply screwed onto the engine block’s filter nipple, replacing the old full-flow filter. In-and-out ports in the casting and two flexible super-strong oil lines connect this adapter to the remote mount. Remote placement of the filtration units allows larger oil filters to be used, and increases sump capacity – dramatically extending the oil’s useful service life and protecting your wise investment in AMSOIL Synthetic Motor Oil. The recommended replacement interval for the AMSOIL By-Pass Oil Filter is 25,000 miles or one year (whichever comes first) or longer if using oil analysis. The Super Duty Full Flow filter is changed at 12,500 mile or 6 month intervals (whichever comes first) for gasoline engines.

Once the Dual-Remote Filtration System is installed if you elect to use oil analysis testing then you DO NOT need to change your engine oil unless oil analysis testing results indicates you need to: change just the filters. Test samples are easily pulled from the dipstick tube with an AMSOIL pump into a 3 oz bottle and then put into a postage paid box mailed to Oil Analyzers Inc. (see the 5 minute demonstration video below).  This is typically performed every 20,000 miles or every year, whichever comes first for passenger vehicles and light duty trucks. You may very well travel several hundred thousands of miles without needing to change your oil when using oil analysis testing. It really is a simple process and provides an accurate analysis of your engine’s internal condition, as well as the oil’s properties. Oil analysis testing is common practice with commercial, fleets and heavy-diesel equipment that you can use for your benefit as well.
AMSOIL Bypass Oil Filter Installation Library Photos

If you would like photographs of the Dual-Remote system installed on a Ford Powerstroke, Dodge Cummins, Chevy Duramax, Ford F-150, a 1500, or many other vehicles, click on the Installation Library Photos button above.

Improving Your Fuel Economythe Ultimate Guide

Demo Video – How Easy it is to Take an Oil Analysis Sample:

  See this video on YouTube

AMSOIL United States and Canada the Filtration and Lubrication Gold Standards


Save up to 25 percent and get exclusive offers as an AMSOIL Preferred Customer PLUS exclusive help from a former OEM headquarters senior engineerAMSOIL has been in business since 1972 and was the first company in the world to develop an API (American Petroleum Institute) rated synthetic lubricant for automotive applications. They coined the phrase “extended drain intervals” 40 years ago with 25,000 mile drain intervals, and ever since then they have been defining the leading edge of lubrication technology, innovation and performance.  No other company in the world offers 25,000 and 35,000 mile oil changes, and AMSOIL guarantees their product performance. No-one else does that. AMSOIL is the Gold Standard in lubrication and filtration, and amazingly, their superior-performance products are cheaper to use.  The fact is, if you’re not using AMSOIL lubricants and filters, you’re wasting money.

We are here to help you and are at your service to assist you in your advanced technology lubrication and filtration needs.  We hope you will allow us to show you a proven better way.  We have many satisfied customers using AMSOIL products in their commercial, trucking, and fleet vehicles, as well as personal, family and recreational vehicles. And now, you know the AMSOIL secret, too.  Welcome to the AMSOIL family.

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UltimateSyntheticOil promotes the AMSOIL Filtration and Lubrication Gold Standards in the United States and Canada If you want to buy AMSOIL Products, visit our vehicle maintenance page, or the AMSOIL On-Line Store or download a clickable pdf e-catalog

AMSOIL is the undisputed leader in synthetics………….banner2

Since 1972, AMSOIL Synthetic drivetrain LUBRICANTS have proven to be the highest performance engine oils, greases, transmission fluids, and hydraulic and differential gear oils on the market.
But the other key issue is nanofiber filtration
We cover oil filters, air filters and other fluid filters like NO-ONE else can.  AMSOIL offers the highest performance, most cost-effective, most comprehensive filter line on earth.  Consider air and oil…


Until now, Nanofiber filtration technology has been used exclusively in medical, aerospace, electronics manufacturing, and heavy duty applications, including the US ARMY Abrams M1 tank.   AMSOIL Ea Filters are the first and only filter line to bring this technology to the auto/light truck market.

EaO nanofiber oil filters provide unmatched full-flow filtering efficiency to 98.7 percent at 15 microns, and 50 percent at 7 microns.  This translates to a 70% reduction in engine wear rates, tripling remaining engine life while giving longer filter life and lower pressure drop for better cold-start performance: the only filtration that gives you the best performance in every category!  Compare that to the filters lining the auto-parts shelves, which don’t tell you their common 7,500 mile/6-month design life and either won’t tell you what micron level their efficiency rating is for, or they claim a micron particle size without stating an efficiency: deceptive, meaningless numbers.

Additionally, consider bypass filtration systems for commercial and fleet applications in cars and light, medium and heavy trucks which can filter particles down to less than one micron and are 89% efficient at 1 micronmaking oil changes virtually unnecessary and virtually eliminating engine wear.  (A standard full-flow oil filter can only filter to 20 microns with any reasonable efficiency, but 5-25 microns is widely accepted as the wear-particle size range.)  Easy to install, these oil filter systems have been proven by millions of miles of over-the road trucks, construction equipment and fleet service. And we use these on our personal diesel pickup trucks: my Duramax 2500HD has over 70,000 miles since the last oil drain, the oil analysis looks perfect, and the appearance of this diesel oil looks like a gas engine with 3,000 miles on the oil.


The MOST IMPORTANT filter on the M1A1 Abrams battle tank is its’ nanofiber air filter.On Patrol Abrams M1A1 Battle Tank beats the dust with Nanofiber Filtration Technology
The MOST Important filter on YOUR vehicle is also the air filter.

It’s far better, and easier, to keep wear particles out of the engine than it is to attempt filtering them out of the engine oil.  Yet filter companies and vehicle manufacturer’s are strangely silent about actual air filter performance and engine needs.  Now AMSOIL offers world-leading breakthrough Ea air filters with exclusive nanofiber technology.  Based on battlefield-proven air-induction systems used in military ground and air vehicles, this high-technology filtration is now available for consumer use!  Ea filters are guaranteed for 4 years, 100,000 miles.  The engineering rule of thumb for damaging wear particle size is 5 to 25 microns.  Incredibly, these filters are 100% efficient at removing particles of 3 microns, and are 80% effective at removing particles of a 1 micron size.  This means that NO WEAR PARTICLES CAN GET PAST OUR Ea AIR FILTERS!  AND, they’re less expensive to use than ANY other air filter.

For Power Sports applications, AMSOIL offers a line of oiled-foam filters.  These filters provide better performance than oiled-gauze air filters, and are used almost exclusively in most off-road applications including baja, dirt-track racing, and motocross.

For light to heavy trucks, both gas and diesel engines, AMSOIL’s partnership with Donaldson provides you with the best performance and most cost-effective air filtration systems in the world.  These include both Powercore and Nanofiber technology filters.  We have the full line of  Donaldson Filters Now Available , including nanofiber air, fuel, water, oil and hydraulic filters, with exclusive performance warranties (no one else in the industry offers filtration performance warranties).  Contact us for specific recommendations, or see our Diesel Page.

Air Induction Systems:AMSOIL EaAU universal conical filters replace filters on custom induction systems made by K&N, Injen, S&B, Green, AIRAID, AFE, TrueFlow and Banks

Well-engineered aftermarket air induction systems can provide airflow improvements with gains in horsepower, fuel economy, and towing torque.  Unfortunately in many cases they may also let far more wear particles into your engine than the OEM filter.  And oiled media can contaminate mass flow air sensors, causing problems with emissions, fuel economy and performance that can even damage transmissions in some cases.  AMSOIL lets you leave those problems behind. The full line of nanofiber universal air induction filters (EaAU) are designed to replace stock oil wetted gauze or foam conical filters that were supplied with custom induction systems produced by K&N, Injen, S&B, Green, AIRAID, AFE, TrueFlow and more. Whether your air induction system is in a gasoline street-rod, or a diesel truck, you have great airflow but you need better filtration and more capacity than you get with oiled gauze or foam.  AMSOIL Ea Air Induction Filters are dry no-oil filters with nanofiber filtration media to bring your aftermarket air-intake far better efficiency, 50 times the capacity, and excellent airflow while being easily cleanable – every 25,000 miles.


  • AMSOIL products saves you time and money.  With recommended extended drain intervals, AMSOIL performance typically costs LESS per year than conventional oil changes.
  • The only 25,000 mile/one-year motor oils in the world.
  • The only 25,000 mile/one-year engine oil filters in the world.
  • A vehicle lubrication solution with far less environmental impact, using an estimated 87% less oil and 5-10% less fuel !
  • The only oils and filters with a warranty for GUARANTEED performance!
  • Exceeds the most stringent performance specifications of all major U.S. and foreign automotive and truck manufacturers.
  • Provides up to four-times the wear protection of other motor oils.
  • Increases the mileage life of your vehicle.
  • Improves fuel economy.
  • Increases at-wheel horsepower.
  • Lowers transmission and differential operating temperatures and delivers better shifting, even in heavy towing.
  • Lowers fleet maintenance costs by lowering the costs of both scheduled maintenance, and mechanical repairs.
  • Lowers fleet capital costs by dramatically extending vehicle service-life.  (Fleet vehicle mileage typically extended 20 to 100%.)
  • Diesel oil and filtration products designed to deliver more than 1,000,000 miles for over-the-road trucks before engine overhaul.
  • Used by many national racing teams, fleets, police departments, fire departments, ambulance fleets, construction firms and trucking companies.



DMT Technical operates as part of a group of highly skilled team of OEM Engineers and Lubrication and Filtration Specialists.  In fact, we are the ONLY such group on the internet, as well as the largest AND fastest-growing AMSOIL Dealer organization in the nation.  You too, can join our group when you become an AMSOIL Dealer and take advantage of all that we offer as you use products in your own vehicles or begin your own AMSOIL business. You cannot find a more knowledgeable and skilled group of Dealers anywhere.

In addition, as a Dealer in our group you will receive exclusive unlimited product, technical and business support from the only group of Truck and Automotive Engineers and Lubrication Specialists on the net.  That’s priceless – yet free – vital support that can make a huge difference to a growing business.

We do not run our business purely on the internet. We also have numerous commercial, industrial, trucking, excavating, construction, logging, police, racing and many more accounts that we support and service on a regular basis. We have several fully stocked warehouses and fully equipped shop facilities. This provides us with excellent knowledge of the products, equipment and the business and the ability to respond immediately to any of your needs. We will use this knowledge and experience to help you get started so you too can achieve your goals.

We possess the skills, desire and knowledge to answer questions, solve problems, improve efficiency, reduce downtime, maintenance costs and increase the durability and life of all of your vehicles.

Read what our thrilled customers have to say about us. Read through our website. Contact us with any questions. If you decide to become an AMSOIL Dealer you will be joining, in our opinion, the most skilled AMSOIL group there is. We will help you get started and provide you with the tools and information in order to be successful in this business or with technical and product assistance to use AMSOIL products in your own vehicles.

To get additional information:

We offer several options to receive information on AMSOIL. We welcome the opportunity to work with you personally as your servicing AMSOIL Dealer.  Our AMSOIL Dealer Group is led by former OEM Truck/Automotive Engineers and Lubrication Specialists with over 20 years experience each, who can provide you with unparalleled and valuable advice. This exceptional benefit is unavailable elsewhere. 

Please, email us at  and we will send you exclusive comprehensive info on products, technical and business factors. If you are serious about AMSOIL products and the business opportunity this is the best option. You will receive extensive technical and business support from both myself and my other OEM Detroit, Michigan Truck/Automotive Engineers and Lubrication Specialists with over 20 years experience each. We look forward to helping you learn about AMSOIL.

Or for a smaller, general information package (which includes a catalog and Dealer application) you can request information via any of the links below.  Please note that your information is always held in confidence per our Privacy Policy, and will never be sold, loaned or otherwise distributed.

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AMSOIL United States and Canada the Filtration and Lubrication Gold Standards

Brian Dobben - former Senior OEM Engineer, USA and Canada Amsoil Synthetic Oil dealer - premium oils and filters

Ultimate Synthetic Oil – AMSOIL Products

Garner, North Carolina  27529

Phone: (419) 551-4792