Diesel Page



Get 6.54 – 8.2% more MPG !

Whether you manage a small to large vehicle fleet, or a farm, or are an OTR Owner/Operator, or provide expedited delivery, transport or transit services, or drive your own personal diesel, we’ve got the secrets to the longest life and lowest maintenance costs using the best synthetic oils and greases, nanofiber filtration, bypass filters and oil sampling analysis.  In today’s tough economic climate, most fleet managers realize they need to find smarter ways to reduce fleet maintenance costs while boosting fleet fuel economy and extending fleet service life.  And it’s not just the engine, but the transmission, differentials, transfer cases, ball-joints, power steering, and aux hydraulic systems.  You’ve come to the right place: we’ve got the answers you need, that few “experts” understand and fewer are willing to tell.

A Million Mile 5.7L gas-engine 3500 van with the original untouched engine and transmission?
No, we’re not kidding – a million miles. If our technology can do that, imagine what we can do for your diesel and gas powered fleet.

Lessons from the Million Mile Van

But… you don’t have to imagine, because we have real data:

  • Owners – Managers: Click Here to APPLY FOR AN AMSOIL COMMERCIAL ACCOUNT. Fleet – Facility – Equipment. Get the Best Pricing PLUS Expert Engineering Advice A grueling-duty diesel fleet tested a switch to AMSOIL.  Read the stunning test results revealed by their existing oil analysis PM program, and the remarkable results of a standard 8,000 hour maintenance teardown on the HEUI DT466 engine, after running a lengthy AMSOIL diet averaging over 900-hour oil changes. (Per OAS, it previously required 200 hour drain intervals.)
  • Here’s the continuing saga of a Class 8 owner/operator rig with over 2 Million miles.
  • Fleet fuel-economy improvements are inevitable, and normally range from 2 to 10% depending on how many drivetrain lubricants are changed and what lubricants were previously in use. (Commonly, the engine, transmission, and differential each contribute roughly a 2% increase.)

Until now you’ve been held hostage to the profit agendas of the world’s biggest companies.  But not anymore.  We’re automotive engineers and lubrication specialists who are passionate about moving you past the smoke, mirrors, slogans and emotional assurances of marketing hype driven by big corporate agendas. We’ll give you the real facts with SAE/ASTM/API test-data and tear-down inspections, and let you in on the very secrets that the OEM’s, trans and engine rebuilders, and big-petroleum (including the API) don’t want you to know. 


DODGE RAM Cummins Diesel Owners Page
Ford PowerStroke Diesel Owners Page
Duramax Diesel Owners Page

AMSOIL United States and Canada the Filtration and Lubrication Gold Standards

This new pdf Diesel Power brochure covers: important products and information for all diesel-powered vehicles.

Have you ever realized… not a single OEM publishes a performance spec for oil filter or air filter media?   …    Do you know why?
AMSOIL provides 75% Better Protection 400x300_75ASL

It’s because modern engine filtration and lubrication technology is a huge game-changer that mainly benefits vehicle owners.  The OEM approach: don’t ask, don’t tell.  

How good are AMSOIL’s synthetic oil and nanofiber oil and air filter technologies?
The certified ASTM & SAE data shows that they reduce wear by 70 to 98% over the typical commercial fleet products that you’re probably buying now.  That’s why the OEM’s remain silent on filtration efficiency, and that’s why they haven’t long-ago required high-performance lubricant specifications: these technologies have clear potential to more than double your fleet life, and your service intervals.  What would that do for your business  survival, maintenance staff and profit strategy over the next two to five years?

All vehicle and equipment warranties are secure when using AMSOIL. Plus, AMSOIL warrantees their product performance even long after OEM warranties expire.
Click for details (opens in new tab)

Warranty concerns?  There is no problem, no risk. Dealers or OEM’s sometimes rely on your fear and ignorance to boost their profits from your wallet, and people still spread the myth that synthetics cause gasket or oil-seal leaks, but don’t be a victim of fear and myths.  OEM’s cannot and do not deny warranties for using dramatically superior technology that outclasses mousey API/SAE service grade requirements and has nothing to do with their equipment failure.  A Dealer employee may occasionally try to verbally deny a warranty, but the OEM’s don’t stoop to that because they have the legal burden of proof (not you) and they have to do it in writing.  Regardless, we stand with you on any rare issue that may arise. 

Your DPF-Burdened Diesel Engines Are Fighting a Fuel-Contaminated-Oil Battle and LOSING !

It’s Time to Armor-Up with AMSOIL.

At 4% fuel dilution, AMSOIL delivered. The competition failed.Chart of Synthetic Diesel Oil Viscosity Performance at 4% Fuel Dilution

Diesel fuel is a natural solvent, and quickly reduces the motor oil’s life expectancy and effectiveness.  Fuel dilution leads to reduced oil viscosity, reduced oil film strength, increased engine wear (particularly in the cylinder/ring area), increased volatility, weakened lubricant detergency, accelerated lubricant oxidation, varnish formation, acid formation/corrosion and low oil pressure.

In diesel applications, a fuel dilution rate of 2 percent is abnormal and anything over 5 percent is excessive. Factors such as frequent starts, excessive idling, short trips and cold starts have contributed to moderate levels of fuel dilution in diesel applications for years. But recent issues created by modern Diesel Particulate Filters (DPF’s) and other emissions management strategies have brought the fuel dilution problem to a whole new level.  For example, increasing fuel dilution levels are documented in 2007+ Caterpillar C13 and C15 on-highway engines.  In addition, the DPF regeneration process in 2007 to present GM, Ford and Dodge diesel pickups has also been identified as a major cause of troubling levels of fuel dilution.  Except for the 2011+ LML Duramax engines, these 2007+ OEM engines all employ an “active” regeneration strategy that includes in-cylinder injection of raw diesel fuel during the piston’s exhaust stroke.  Some of the fuel is wiped/washed past the rings and directly into the crankcase, diluting the oil.  This periodic washing of raw fuel into the oil makes it even more prone to viscosity loss and places the engine at greater risk of abnormal wear.

AMSOIL’s premium CJ-4 Synthetic Diesel Oils stay within viscosity grade, even when diluted with 4% fuel – which has become common in some vehicle conditions. Even though no oil can provide a decrease in your oil-dilution rates from regeneration over-fueling, AMSOIL CAN and DID provide superior protection for higher levels of fuel dilution than was previously encountered in normal diesel engine operation.  AMSOIL’s engineers understand the huge negative impact of DPF active-regeneration fuel dilution problems on engine longevity, so they made sure that AMSOIL’s diesel oils continue to maintain viscosity at even higher fuel dilution rates long after other oils have failed.

4-ball wear test chart for Amsoil HDD - Delvac - Valvoline - Rotella T- Delvac

The Best From Donaldson Filters
Now Available From AMSOIL!


This 2-Million Mile Kenworth is still rolling strong OTR with AMSOIL!

  See test data comparing synthetic diesel oil performance

Improving Your Fuel Economy: the Ultimate Guide

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

  See this video on YouTube


Safely Extend Oil Drain Intervals:
Download our Free Guide to Oil Analysis Sampling

Need an Oil Analysis Kit or sampling pump?

Visit our Oil Analysis Store


photo of nanofiber filter strands on cellulose substrate

Nanofibers Banish Wear

Use a Nanofiber Air Filter and
 Nanofiber Oil Filter:
best performance, best protection, longest-lasting, AND saves you money !

We recommend only the best-performance bypass filtration systems  

(Photo above) Nanofiber filter mesh
overlaid on standard air-filter media

Profitability Secrets for Small to Medium Fleets

– Gas and Diesel

Fleet Managers –

Do YOU know the four secrets that the smartest and most profitable “big fleets” use to boost profits?
Here they are:

  1. true synthetic lubricants through the whole drivetrain

  2. nanofiber filtration technology

  3. oil sampling analysis

  4. bypass oil filtration

What about oil additives?  Which oil additives are best? Review our highly detailed page on oil additives that includes groundbreaking responses from our engineers in the Q&A’s from owners and fleet managers.

Click here to see how YOUR fleet can save a lot of money using synthetic lubricants and nanofiber filtration technology, through reduced maintenance, extended drain intervals, fewer rebuilds, less downtime, longer equipment life, better fuel economy, and reduced oil disposal costs.

Do your commercial V-8 gas engine vehicles get over 930,000 miles on the original untouched engine, and over a million miles on the untouched transmission?
Read the remarkable details on how an expedited delivery driver drove a million mile 5.7L Chevrolet Express 3500 van, then consider:

Lessons from the Million Mile Van

You may want to pass along a link to our Christian ministry and business vehicle maintenance resource.

Would it surprise you that the OEM’s don’t want you to knowDifferential Ring and Pinion Gears
how to extend the life of your fleet/engine/differential by 50 to 500%?
[Too bad for them – we’ll tell you!  See below.]

Your differential should last 500k miles or more.  Here’s how to prevent diff failure.


  Looking for Amsoil Wholesale Pricing? 

If you already have a Commercial Account, Preferred Customer, or Dealer status with AMSOIL, you can download the latest pricing by logging into your AMSOIL account.  Otherwise, just click on those links for more information, or  us and we’ll forward you the latest Wholesale U.S. Price Guide for your consideration.

This new Diesel Power pdf brochure covers important products and information for all diesel-powered vehicles.


Guardian Pest Control Fleet Study - Report CoverGasoline Engine Case Study:

Read how the Guardian Pest Control fleet dramatically boosted their fleet performance, service life, and profits…  Some excerpts:

“It is incredible that the fleet has quadrupled in size and Guardian has not had to add an additional mechanic.”

“The accompanying photos detail the condition of the 225,000 mile engine at the teardown… The rear main bearing cap and oil seal were in good condition. The rear seal was very pliable and still intact, showing no signs of deterioration.


Synthetic Diesel Oils:

Learn about the Performance Power and Financial Advantages of Synthetic Diesel Oil in Diesel Fleets and Diesel-Powered Equipment…
AMSOIL is Devoted to Protection

Owner and Fleet Manager Comments (ref g552):

“In the trucking industry,” said Foster, “synthetic lubricants are commonly used in the drivetrain for fuel economy benefits. Yet, I found it hard to believe that changing the engine oil would help fuel economy. However, the data indicates about a three percent fuel economy increase, and we’ve certainly noticed a difference.”
— D.W., Arizona, Fire District Chief Mechanic

“AMSOIL HDD made a significant difference in my fuel economy.  I’ve compared the same period this year to a year ago — same time of year, same loads, same routes — and found a 1/2 to 3/4 mpg increase with HDD. For me, that translates into a $1,500 to $2,500 a year savings.”
— J.P., North Dakota, Independent owner/operator

“The test fleets include 45 vehicles equipped with Detroit Diesel 6V-92TTA engines with an average 350,000 test miles per vehicle; 10 vehicles equipped with Cummins NTC-350 engines with 220,000 test miles per vehicle; 21 vehicles equipped with Caterpillar 3406 DITA engines with 220,000 test miles per vehicle. All results shown are averages…”

See legacy commercial vehicle testimonials.


Any marketer can make opinion statements, emotional appeals, and unsupported claims. But DATA is where engineering battles marketing to WIN on the field of reality.

(Welcome to reality!)

Nordic Waste Severe Fleet Synthetic Oil Study

Read through these results of oil analysis, cold-temperature operation and engine teardown of an HEUI engine  that is notorious for poor cold-weather starting and rough idling.   Please notice that this severe-duty Midwestern U.S. truck fleet operates year-round near the Canadian border, and was comparing AMSOIL AME to their previous history of trying many oils but primarily using Rotella T as their benchmark standard!  Pay close attention to their low wear rates across all the engine metals, and their TBN and Viscosity. 

It’s logical that since the overhaul teardown showed that there were no petro deposits in the engine, there would be none in the HEUI injector actuator spools to cause the petro-gumming “stiction” that can prevent smooth starting and idling in cold weather. AMSOIL eliminates the HEUI petro-gumming injector problem, without resorting to expensive additives, while providing unparalleled performance and protection.

Three excerpts:

“With conventional lubricants, when trucks weren’t plugged in, starting would be difficult, if even possible, and even if the trucks turned over, engine protection would be minimal because no oil pressure would appear on the gauge,” said Johnson. The test truck’s operator, Wayne Carlson, noticed the difference with AMSOIL Synthetic Diesel and Marine Motor Oil right away. “The truck has excellent performance in winter,” said Carlson. “It fires right up without being plugged in and there is instant oil pressure with AMSOIL. In trucks I have driven using conventional lubricants, it could take more than a minute to build any oil pressure when cold, providing little engine protection.” AMSOIL 15W-40 Synthetic Diesel and Marine Motor Oil is formulated to provide exceptional cold-temperature performance.

Use of AMSOIL 15W-40 Synthetic Diesel and Marine Motor Oil, along with oil analysis, has allowed Nordic Waste to extend its trucks’ oil drain intervals to nearly 1,000 hours – four times the length of service possible when using Shell Rotella T.

“We buy significantly less oil, fewer filters and we experience lower labor costs,” said Johnson. “Our biggest savings have been the reduced number of engine overhauls and replacement parts.”


Do YOU know the profit-power of Oil Sampling Analysis and Bypass Oil Filtration??

AMSOIL Bypass Oil Filtration Means Diesel Soot Removal:

Deep-Cleaned Oil can Double to Quadruple Your Engine Life

AMSOIL BMK-27 Dual Remote Bypass Filter Installation on 2002 GMC 2500HD DuramaxOur Bypass Filter systems for commercial and fleet applications in cars and light, medium and heavy trucks (to Class 8 and beyond) use the world’s leading nanofiber technologies to 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 reasonable efficiency.) By removing all wear particles and extending oil life, these filters commonly increase fleet vehicle engine life before rebuild by 100% to 500%. These are the highest performance oil bypass filtration systems available on the market, and with easy-installation kits selling for only $250-$650 while greatly extending oil drain intervals, pay-back is quick.

AMSOIL Bypass Oil Filter Installation Library Photos

AMSOIL BMK Dual Remote Oil Filter DisplayThis Dual Remote Bypass Oil Filtration Kit is shown on a display stand with Ea full-flow and Ea Bypass nanofiber oil filters, and hoses attaching to the included standard spin-on adaptor (which screws on in place of your current oil filter).


Billet Aluminum Blue Anodized installation parts for AMSOIL bypass oil filter installations

Click here to see billet aluminum fittings for installing bypass filters in Ford PowerStroke, Dodge Cummins, and GM Duramax turbo-diesel truck engines.

New to Oil Sampling Analysis and Bypass Filtration?? 

Have you heard?  Those are the secrets that the most profitable fleets and equipment garages have used for decades: bypass filtration doubles their fleet life, and OIL ANALYSIS is their key to using high-performance true synthetic lubricants to optimally tune their maintenance program for low costs, high uptime, and effective Predictive Maintenance.  Isn’t it about time YOU learned those secrets to become more profitable?

Discover the POWER of Oil Analysis for YOUR vehicles: start by downloading a


So Simple to Add Bypass Filtration to Your Engine


Biodiesel fuels strongly accelerate the breakdown of ANY engine oil.
No matter what brand or type of engine oil you use, you will need to closely monitor your oil performance with oil analysis and shorten drain intervals as your use of biodiesel blends increases.  This can mean cutting your previous oil drain intervals in half (assuming use of the same engine oil).  Oil analysis sampling is important. If extended oil drain intervals are not appropriately shortened, biodiesel contamination could produce accelerated wear and engine damage due to oil failure.


This diesel page is regularly improved and updated to add more information – please check back!

Recommendations and Related Articles:

My AMSOIL Garage tracks your oil changes and maintenance for ALL your vehicles for FREE

For more specific info on oil selections and tips for turbodiesel pickups, we invite you to expand and turbocharge your knowledge when you…


DODGE RAM Cummins Diesel Owners Page
Ford PowerStroke Diesel Owners Page
Duramax Diesel Owners Page

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………….

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 AMSOIL stepped in, 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 nanofiber 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 Ultimate-Synthetic-Oil.com 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.

To request a FREE Factory Direct Catalog by MAIL

To Immediately Download a FREE Factory Direct pdf e-Catalog

Review Dealer Opportunity Information NOW  OR  Request 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


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 Proudly Made in the U.S.A.

AMSOIL is owned by Americans.

AMSOIL is America’s Oil.

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: (800) 240-0365