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Converting to AMSOIL & Breaking in a New Engine - Please Read This Critical Information


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Revealing the boldest skeptic's questions... and our engineers' answers


Research Study Released -

September 2007! 

Since your whole tow load rests on TWO gear teeth, How can you save your "Diff" from failure? 

Hauling or towing?  How long do you want YOUR Differential to last?

Read the Free

Differential Gear Lubes Research White Paper (482 kb)  

Most of the 14 Name-Brand Gear Lubes Tested FAILED Specification Tests - is yours one of them? 



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New CJ-4 Oil for the new 2007 Diesels


Fuel Economy:  Our exclusive Ultimate Guide to Improve Your Fuel Economy

(Updated again May 2009)


Boost your MPG -
See controlled test fleet average an 8.2% increase in fuel economy!


Breakthrough:  Nanofiber Air Filters use no oil, last over 100k miles, flow like oiled gauze, AND are 100% efficient
 at 3 microns!!!


NEW ! 

New AMSOIL EaAU Replacement Nanofiber Air Filters for Most Popular Air Induction Kits


What Product Do I Use?  When Do I Need to Change My Amsoil Oil or Filter? 

Oil & Filter Application Guide (PDF)


NEW ! 

New AMSOIL EaBP Nanofiber BYPASS Oil Filters are 98.7% efficient at 2 microns: take out more soot than any other filter!


Nanofiber Full-flow Oil Filters

Last 1-Year/25,000 Mile


AMSOIL AFL meets VW 505.01 and all Euro specs for gas/diesel/turbocharged>


26 Motorcycle Oils Tested: AMSOIL makes Motorcycle History with the most Comprehensive, Authoritative Research Study ever done (1 Mb PDF)






Duramax Diesel Owners


Ford PowerStroke Diesel Owners

Dodge Cummins Turbo Diesel Owners



The Importance of Engine Filtration


Military / Aerospace NanoFiber filtration for YOUR VEHICLES:

Nanofiber AIR Filters:

100% at 3 microns, last 4-Years/100k Miles


Nanofiber OIL Filters

Last 1-Year/25k Miles


Cold Air Induction - Nanofiber Replacement Filters for Popular Cold Air Intake Systems


Bypass Oil Filters run 2-Yrs/60,000 Miles: 

98.7% at 2 microns is better than any competitor






Get Your Oil Analyzed by a Lab (pdf)


GM Reveals Oil Change Intervals Average 8,500 Miles with Oil Life Monitoring System (OLS) (pdf)


3,000 mile oil changes?!  What a rip-off!  GET REAL with modern technology.


Warranty Laws You Need to Know


Informative Articles Must Read!


The Auto Industry's Best Kept Secret REVEALED!

Technical Properties of Oils & Lubricants:
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The Facts About
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API Comparative Motor Oil Testing


North American Engine Oils may be Harmful to European Engines

Which 30-weight Oil to Use:  0W-30, 5W-30 or 10W-30, with Discussion of Viscosity Basics

Ford & Honda's 5W20 Issue

Ten Myths About Synthetic Lubrication

Oil Color, Lubrication Ability and Contamination Level





AMSOIL vs. Mobil 1


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Converting to AMSOIL & Breaking in a New Engine - Please Read This Critical Information



Exxon-Mobil FINALLY follows AMSOIL's 33-year-old introduction of Extended Drain Intervals - kinda sorta


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AMSOIL Introduces Four New Two Cycle Oils


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12 Standardized Tests on 26 Motorcycle Oils: the most Comprehensive, Authoritative Research Study in Motorcycle History (1 Mb PDF)


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Harley-Davidson Oil & The Low Quality of OEM Oils

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Synthetics, Slipperiness and Wet Clutches  - Simply Not an Issue




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The Facts About Aftermarket Oil Additives



What about Oil Additives like Slick 50, Prolong, Zmax and others

The fact is they are totally useless and in many cases actually detrimental or damaging to your engine.  If you quietly corner a lubrication engineer (in case he works - or might one day work - for one of "those" companies) and ask him "off the record", he'll tell you that oil additives are the modern version of “snake oil” sales: completely fraudulent, they’re an unethical embarrassment to the lubrication industry.  The Federal Trade Commission has issued charges of false and deceptive advertising that these and many other additive manufacturers have misled consumers into believing that their products offer increased engine protection and performance when added to your motor oil.  FTC examples

Federal Trade Commission Charges zMax with False and Deceptive Advertising

Read about the latest FTC charges against zMax in our informative articles link. ZMax is the latest company to be charged in a long list of companies. The FTC has successfully halted false and deceptive advertising by the marketers of Dura Lube, Motor Up, Prolong, Valvoline, Slick 50, STP and other major brands of engine treatment systems.  Unfortunately, halting the deceptive advertising does not correct the false word-of-mouth advertising which continues to be spread by unsuspecting customers who don't know they were originally lied to.

Without going into extensive detail here's what you need to know about aftermarket oil additives: There are basically two types of additives used, either Teflon based with PTFE (like Slick 50) or Chlorinated based (like Dura Lube) with some type of carrier, usually a paraffin based carrier or other mineral oil. Some have extremely large amounts of moly (or MoS2 - Molybdenum Disulfide), zinc or phosphorus: all are EP (extreme pressure) agents which are detrimental to a motor oils' proper function in the amount that they use. 


EP additives are great in gear lubes (where they're widely used by the whole lubrication industry), but they typically cause increased friction, heat, and reduced fuel economy at the lower-pressure loads in an engine application.  And at the higher operating temperatures that engine oils are subjected to, EP's typically break down and cause corrosion of copper/bronze/brass components (bearings).  

Teflon does absolutely nothing beneficial inside your engine. Teflon must be heated up to about 800 deg. F to get it to stick to anything for friction reducing purposes, just like the Teflon on a frying pan. In your engine what those suspended microscopic colloidal Teflon particles do is gradually attach to your oil pick-up screen and reduce oil flow to your critical components as well as reducing the oil flow in other critical internal engine passages by attaching themselves to the passageway walls. In addition, as your oil filter captures some of these suspended Teflon particles, your filter flow rate will be reduced with a higher pressure drop across the filter.  The increasing restriction can gradually default more frequently into by-pass mode even at moderate temperatures and engine rpm's, which means more unfiltered oil will be flowing through your engine.  At higher rpm's, some filters can collapse from the higher pressure differentials, starving your engine for oil and producing rapid engine failure.

Ever get bleach on your fingers? It's pretty slippery isn't it? Same principle here. Add enough Chlorinated components to a carrier and mix it with some type of teflon, moly, zinc or phosporus & you can reduce the friction, except for one "minor" thing: Chlorinated additives mixed with oil and subjected to heat form hydrochloric acid! Hydrochloric acid is extremely detrimental to your internal engine parts. Get the picture?


That's it in a nutshell. Bottom line is: When using a properly formulated motor oil you do not need any additives whatsoever and additionally, the additives you may put in can react negatively with the additives the oil company carefully blended in. Do yourself a favor and stay away from aftermarket oil additives, regardless of how appealing the bogus claims are in their advertising!

What if They Have a Test To Show How Their Additive Works?... Read On............

At a recent trade show we attended, one of these miracle oil additive companies was there with a machine that demonstrated how their additive reduced friction. It was a motor with rotating solid steel disc secured to the motor shaft and a torque meter with a flat piece of steel mounted on the torque arm. They put every type of oil on the market, one by one, on the machine & pressed hard on the torque meter and at about 20-40 lb-ft torque the torque arm would stall the motor....that is, until they cleaned it off & tried their (chlorinated) additive "IXL" on the bearing & ran the test.

People were amazed as the meter peaked out at 140 lb-ft. torque and still didn't stall the motor! We knew what was happening but many unsuspecting consumers were eating it up and standing in line to buy the additive! The next day we showed up with some Head & Shoulders Shampoo disguised in an oil bottle & had the IXL additive people try it on their test machine. The operator was amazed as the motor just barely stalled at 140 lb-ft! The operator says that's pretty good stuff, what is it? We said Head & Shoulders. He was quite embarrassed to say the least. Head & Shoulders has high levels of high potency ZINC in it that attaches itself to ferrous metals. Coke soft drink will do exactly the same thing. ZINC reduces friction and provides anti-wear protection and is present in most motor oils at a much reduced level. Now, would you put Head & Shoulders in your engine?

Additionally, the test machine was measuring EXTREME PRESSURE. This was their secret demo trick.  Motor oils do not have extreme pressure (EP) additives blended in like gear lubes do. There is absolutely no need for EP additives in a motor oil.  A gear lube would not stall the motor as easily because gear lubes have high levels of Extreme Pressure additives blended in, but do you think they would test their IXL additive against gear lubes? Heck no! They use motor oil....They are comparing apples to oranges & tricking you into buying their additive! Same theory holds true for Slick50, Prolong, Dura Lube, Motor Up, Valvoline Engine Treatment and many others.


By the way, I personally requested and reviewed the available IXL "test data": they had to mail photocopies.  When I got it, I could see why it wasn't available online.  A couple of simple made-up tests done by a university lab that measured HP and RPM differences so small that they could be due to instrumentation error or morning/afternoon air temperature differences.  No standardized ASTM tests were performed at all: IXL has none of the API industry-standard controlled testing results whatsoever.  The logical conclusion is that the product cannot show any favorable results in standardized testing procedures. ("Standardized" tests are tightly-defined, and proven to be very reliable and repeatable.)


Yes, but what about Lucas Oil Stabilizer? 

Isn't it used extensively in drag racing?  Yes it is, and it's a unique category in oil additives with a milder version of deception.  With high-alcohol fuels and high horsepower, there is a huge problem with the engine oil becoming rapidly diluted (thinned out) by the alcohol.  To combat this problem, drag racers commonly use a very heavy racing oil (like 60 weight), then add Lucas to the oil because it increases the viscosity even more.  That way, as the oil is being rapidly diluted going down the dragstrip, when they back off the throttle it might be a 30 or 40 weight oil instead of a 10 or 20 weight oil that would allow a lot of engine damage.


Now, what does ANY of that have to do with your vehicle?  NOTHING !  Adding their product to your oil will increase the weight (viscosity) of your engine oil, which will decrease your fuel economy and increase your oil pressure.  Increasing the oil pressure beyond the 30 or 40 weight that the engine's designed for doesn't help you.  In fact, it's a negative because it adds load to your starter and battery, especially in cold weather, and it makes your engine wear faster.  That's right - your engine wears faster for two main reasons: because during cold starts it takes longer to get the oil to all the components, and the higher oil pressure drop across your oil filter means that more of the oil will bypass the filter than normally occurs while your engine is warming up during driving.  So you're pumping additional wear particles through the engine rather than filtering them out.


The deception is that they want you to assume that what's good in a top-fuel dragster is good for your engine, without actually making that claim on their bottle.

Lubrication engineers say:  Motor oils, transmission fluids and gear lubes are carefully designed and balanced lubrication packages that are scientifically formulated and rigorously tested.  Want better performance?  Buy a better product whose performance is proven by industry standardized testing.  Please DON'T be fooled by oil additives!


Oil Additive Questions and Answers
about lubrication, filtration and other truck maintenance issues:

These e-mailed/posted questions were answered by our degreed automotive engineers.
(None of them are employed by AMSOIL, Inc.)


Q:  Why are you so hard on Slick 50 without giving any evidence? (February 2009 e-mail)

I came across your website while searching for some Slick 50 products. It is really sad to see that even after 30 years of Slick 50 being on the market in its present form that you synthetic guys still don't (won't) understand it and continue to lump it in with the glorified engine flushes like Dura Lube.

You can get as defensive as you want but after using the Slick 50 products since 1981 in everything from lawn mowers to a P51 Mustang, I know that the product does what it says it will do, is an engine treatment not an additive and is definitely not 'snake oil'. Even on your website you make no case against it. Your FTC article only chastises Quaker State for "over stating the wear on an engine with just oil" in the crankcase. Isn't that pretty much one of the synthetic arguments? Also, Slick 50 does not contain Teflon, just PTFE, the building blocks of Teflon and can only treat, not through heat but heat and friction. The PTFE resins are less than 1 micron is size and absolutely cannot clog any oil filter on the market.

Don't talk to a lubrication engineer, talk to a petroleum engineer. They will still tell you as they would 30 years ago that they can make a natural oil product that is as good or better than any synthetic, but they can't sell it without the synthetic hype. Synthetics are definitely better than today's standard oils, but unnecessary and too expensive once the engine has had ONE quart, ONE time of the Slick 50. I know, I proved this hundreds of times in the 80s. Not through 'I think it is working' or subjective checks of gas mileage but through independent lab testing of oil samples before the use of the Slick 50 and an oil change or two down the road from when the Slick 50 was introduced. Wear levels were always down over 50%, with the chromium being down consistently over 70%.

I know you are not convinced nor would I expect you to be. All you have to do is look at a couple facts:

The product has been around in its present form for 31 years (Dura Lube, PRO Long and the others won't make it that long); The product was FAA accepted for aircraft in 1981 only 9 months after application (how long did it take Amsoil to be accepted for aircraft, 15+years); NO other product of its type is owned by a major oil company. The engineers at Quaker State, now PennZoil are not idiots, they would not put their name on "snake oil".

I have been completely satisfied with the product in all of my Corvettes over the last 28 years that I have been using Slick 50 and while I think that Mobil 1 is a good product, I do not waste my money on it after I get the engine treated with Slick 50: a nice 30W Quaker State does just fine.

This was just a long way of saying that your website lacks credibility since you obviously don't know anything about a product that you degrade.

Larry in Texas

A:  Larry – Thanks for the comments. I’m a mechanical engineer. I try to stay as unbiased as I can. So I’m completely open to getting new information, and reserve the right to change my opinion based on new/additional or corrected data. And I’m learning and researching all the time.

Having said that, here’s how I currently see the Slick 50 product stacking up for consumers:

Calling it an engine treatment is a marketing ploy that is used by many oil and fuel additive manufacturers to create a mythical uneven playing field where they can test their product, but you can’t, and where they supposedly can’t show their advantages in the proven industry-standard ASTM tests because they somehow don’t apply. It’s pure baloney. It can be just as legitimately argued that the additive package components in a motor oil or gear lube treat the engine or metal surfaces and aren’t additives. But wait – they’re called additives because they’re added to the base oil stock to produce specific effects in metal surface interaction (and many of them bond to the metal and fill in the microscopic valleys)… just like aftermarket oil additives.

Ref:  1997 FTC - $10M settlement for false claims.

The Slick guys have had over 10 years to get some certified ASTM test data to document some of their claims, to put to bed the fact that they showed nothing to the FTC. And no – still nothing that I have seen. If you find some test data, let me know. I’d certainly like to learn anything contrary to what I currently know about Slick 50. But I’d venture a guess that you don’t know as much about it as you think you do.

“NO other product of its type is owned by a major oil company. ” If I’m not mistaken, some of the other oil additives were started or owned by oil companies at various points in their history.

Any engineer who is fairly well versed in this arena knows that the vast majority of the oil additives out there are – point blank – fraudulent snake oil. (Some, like Lucas Oil Stabilizer, are mostly a negative deception even though their oil-viscosity thickening does produce lower wear rates. If you want thicker oil, just use a 40 or 50 or 60 weight in your vehicle to start with.) And they’ve all got settlements and/or lawsuits against them, but they’re all still on the market. Including the ancient Marvel Mystery Oil. They don’t stay on the market because of their performance, but because of the customer followings they’ve gained through marketing techniques/gimmicks and tricks, including false advertising statements. Those customer followers and the “tribal knowledge” contained and incubated within their ranks, combined with very high profit margins, mean that the legal fees and settlements are only a percentage of their annual profits. So why do they keep selling? Profits. If snake oil is profitable in spite of legal costs, they will sell it. So big deal if they had to change their label content and lay low for a year or two and ride on customer-repeated hype – hey, maybe later is the right time for a new label, a new infomercial.

So again, Slick 50 has had every chance and opportunity to raise themselves above the snake-oil fray and demonstrate clear, tested, proven advantage. It would be easy to do using a few of the same ASTM tests that Amsoil and the petroleum oil companies use. (You’d have to do at least three oils to demonstrate that it’s not only Super-Cheap-Crap-Oil and Syn-Marvel that benefit from the Slick 50.) Simply run the tests with a few standard/typical oils, then run them again with the same oils with Slick 50 added. The testing expenses are a small percentage of a $10M settlement, so what legitimate company wouldn't make such an obvious investment to repair a legal poke in the eye? The fact that Slick 50 has done nothing is rather self-incriminating, don’t you think?

Is Big Oil really that credible? Let’s see. There’s the decades-long push for 3,000 mile oil changes, often through their owned chains like Jiffy Lube, whose president publically admitted in an industry speech that it’s about the money: getting their customers to shorten their drain intervals by 100 miles puts another $19M in their pockets in profit – not including increased sales of add-on products/services. Yet GM’s OLS system safely produces an average 8,500 mile change interval with conventional petroleum oils, and California and GM are so fed up with the 3,000 mile fraud that they have created and funded a consumer campaign to help end it. But wait, Jiffy Lube is a wholly owned subsidiary of Pennzoil-Quaker State ...

I find it educational that they weren’t very embarrassed by a 2005-2007 series of editorial articles in the industry’s primary publication “Lubes and Greases”, calling big-oil on the carpet for the environmentally irresponsible fraud of pushing 3,000 mile oil changes. Major Environmental Concern - Oil companies knowingly oversell oil

And then there’s fuel prices. Now, market futures speculation never drove oil prices before, until Big Oil pushed through the invisible congressional committee regulatory changes to allow that to happen. Even if gas prices were legitimately higher, how do we explain diesel fuel that costs less than regular gasoline to produce, yet is priced about 40 to 80 cents/gallon higher than premium gas? It certainly helps explain the long series of new historical profit-margin highs in $ billions.

And then there’s the API (American Petroleum Institute), controlled by the oil companies. They’ve worked hard to get consumers to believe that only oils they License to display their Trademarks meet the ASTM test minimums and maintain vehicle warranties – yet none of that is true. And they’ve set up their Licensing program to make certain that: 1) Licensing only recognizes minimum performance, 2) Licensing is several times more expensive for actual synthetics, and 3) high-performance synthetics are not eligible for Licensing unless they reduce their performance to be barely above a top-tier petroleum oil, and render themselves incapable of oil-drain intervals beyond about 10-15,000 miles. (Follow the API link above for more details on these issues.)

But back to the subject. If you ask a lubrication engineer, they’re going to tell you that the best way to get better lubricant performance is to buy a better-designed lubricant. You mentioned that a petroleum engineer was a better resource, and that “They will still tell you as they would 30 years ago that they can make a natural oil product that is as good or better than any synthetic, but they can't sell it without the synthetic hype.”

That, Larry, is a perfect example of half baloney or half-truth. A petroleum engineer is steeped in nearly a century of company culture that’s grown up around making money by pumping crude out of the ground and refining and transporting it. Yeh, they can make a natural oil product “as good as any synthetic” – as long as they get to limit which tests to take, and pick which synthetics to call “any”. (Keep in mind that only in the US, and only since 1999, has it been legal to call a Group III petroleum oil a “synthetic”.) In addition, however, there are a couple of glaring problems from a consumer viewpoint. #1, even though they could make a high-performance oil, they don’t, and they’ve long ago decided they won’t. #2, just because it tests good when it pours out of the bottle doesn’t define consumer value: how well does it perform after 10,000 miles, after 20,000 miles, after 30,000 miles? See, part of what they call the synthetic “hype” is that consumers know AMSOIL synthetics have very long service life. To see Amsoil's shocking performance in the API Engine Test Sequence IIIF, click here. Big Oil’s minimum performers with big hype are mostly mediocre and will not hold up in extended drain intervals, therefore they can’t produce “synthetic hype” that’s legitimate.

I think the real question for consumers is not “what can I buy that I think will tweak my oil’s protection”. That question is already a bit of a scam - and always a scam setup. I think the real question is this: “since I have to change my motor oil anyway, what is my best bang for my maintenance buck in cost and in protection”. That’s why Amsoil is my benchmark for the best, and why they’ve been the internal gold standard in the lubrication industry world for at least the last three decades. I’m doubtful that we could come up with any dollar numbers that would support your contention of Slick 50 being more cost-effective and synthetics too expensive, if the “synthetics” include one of Amsoil’s genuine synthetics. I don’t see any likely cost-justification, because on an annual basis Amsoil is usually cheaper than regular petroleum oil, even without including the extra cost of an additive.

Amsoil generally beats everyone in actual annual maintenance costs, and they beat everyone in proven and tested performance.  Here are some examples of cost-savings using Amsoil-based maintenance technologies. And here's the case study of how the Guardian Pest Control fleet dramatically boosted their fleet performance, service life, and profits.

Here are a couple of other links to check out on my website:

You mentioned reduced wear. OK, let’s say Slick 50 does that. Does Slick 50 reduce wear this much? (If the link doesn’t take you to the right spot on the page, you’re looking for the last 2 paragraphs just above where Question #8 starts, where it talks about the wear rate reductions for the refuse hauling fleet, beginning with “We forgot to mention this to M”.)

You mentioned longer engine life. OK, let’s say Slick 50 does that, too. But by how much? Does it extend engine or transmission life enough to produce the million mile van And how about the value of those 25,000 mile oil and filter changes? Obviously, Amsoil had to have worked real well since it wasn’t even installed until 68,000 miles on the odometer! But that’s both Amsoil oil and Amsoil filtration, and only for the last half of the engine’s life did it have nanofiber filtration. There’s a reason we say that the Amsoil solution stops wear in it’s tracks. When you see results like this van, and wear metal rates so low in oil sampling that you wonder if it’s real… you realize the level of engineering is superb, and the determined commitment to excellence is formidable.

Amsoil doesn’t use PTFE in its formulations for the simple reason that other more expensive anti-wear agents are higher overall performance, and provide better value.

Seems to me that if consumers can get lower wear rates, lower maintenance costs, and save a lot of maintenance time with Amsoil, that’s more attractive than Slick 50… even without considering the typical 3-10% fuel economy improvement savings that they get with AMSOIL.

Oh, and one of the most highly respected experts in the high-output Corvette engines has been pretty clear for a number of years that Amsoil makes the best performing oil for the Corvette engine. I’ve got an article interviewing him about that… somewhere.

I hope this is helpful. Please let me know if you have any other thoughts or questions. I’ve got a lot more data, and if you have some I would love to see it, but I’ve got to end for now.

Best regards,

Brian Dobben - BSMET / WET
Mechanical Engineer
Welding Engineer
LeTourneau University Alumni
Society of Manufacturing Engineering
American Welding Society

More: Just say NO to oil additives

Links to a few of the Federal Trade Commission (FTC) articles on the false and deceptive advertising used to market these oil additives:

Dura Lube Super Engine Treatment
Dura Lube Advanced Engine Treatment

Motor Up Engine Treatment

Prolong Super Lubricants
Slick 50 Engine Treatment
STP Engine Treatment
Valvoline Engine Treatment
zMax Auto Additives

If you have an Oil Additive Question or Comment, please e-mail it to us here.  

We make no guarantees that we're going to publish any e-mail questions / answers, but we reserve the right to do so.  If we choose to publish e-mail content, we will withhold identities and personal information unless we have individual permissions to reveal the authors.  While the content above is nearly identical to the actual e-mail exchange content, we reserve the right to make minor changes in content or structure to add clarity or appropriate details that would be helpful for online readers.  Added comments are typically [bracketed].

Copyright 2009, DMT Technical and

All Rights Reserved


AMSOIL has been in business since 1972 and was the first company in the world to develop an API (Automotive Petroleum Institute) rated synthetic lubricant for automotive applications. They coined the phrase "extended drain intervals" 30 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.


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

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 now 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 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 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 micron, making 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.

AIR FILTERS:Abrams M1A1 Battle Tank bites the dust with Nanofiber Filtration Technology

The MOST IMPORTANT filter on the M1A1 Abrams battle tank is its' nanofiber air filter. 
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 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:

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. Their 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 oiled gauze or foam.  AMSOIL Ea Air Induction Filters are dry no-oil filters with nanofiber filtration media to bring your aftermarket 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 and 35,000 mile/one-year motor oils 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.  (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 satisfied 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 a Truck/Automotive Engineer and Lubrication Specialist with over 19 years experience. This exceptional benefit is unavailable elsewhere.

Please, email us at and we will send you an exclusive comprehensive package of product, technical and business information. If you are serious about AMS OIL products and the business opportunity this is the best option. You will receive extensive technical and business support from both myself and my Direct Jobber, a Detroit, Michigan Truck/Automotive Engineer and Lubrication Specialist with over 19 years experience. We look forward to helping you learn about AMSOIL.

Or for a smaller, very 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.

To request a FREE Factory Direct Catalog by MAIL

To Immediately Download a FREE Factory Direct Catalog

For Information on Becoming an AMSOIL Dealer

To Buy AMSOIL Products in the AMSOIL On-Line Store

To Sell AMSOIL in Your Store or Purchase For Use in Your Businesses Equipment

To visit the AMSOIL Corporate Website for Product and Business Opportunity Information


AMSOIL is Proudly Made in the U.S.A.

AMSOIL is owned by Americans.

AMSOIL is America's Oil.

Filtration and Lubrication Gold Standards - the Best

DMT Technical

Ultimate Synthetic Oil - AMSOIL Products

Garner, North Carolina  27529

Phone: (419) 630-0874

E-mail: Brian