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Comparative Motor Oil Testing
Motor Oil Testing:
AMSOIL Synthetic 10W-30 Motor Oil (ATM) and 10 competing conventional and
synthetic 10W-30 motor oils were subjected to a series of API motor oil
tests. The competing oils included petroleum-based Castrol GTX Drive Hard,
Mobil Drive Clean, Pennzoil with Purebase, Quaker State Peak Performance and
Valvoline, as well as synthetic-based Valvoline Synpower, Quaker State,
Castrol Syntec, Pennzoil and Mobil 1 SuperSyn Multi-Vehicle.
Seven API tests were run on the
motor oils. The Thin-Film Oxygen Uptake Test (TFOUT) measures the oxidation
stability of engine oils. The High Temperature/High Shear Test (HTHS)
measures a lubricantís viscosity under severe operating conditions. The
NOACK Volatility Test measures the evaporation loss of oils in high
temperature service. Pour Point indicates the lowest temperature at which a
fluid will flow. Total Base Number (TBN) is the measurement of a lubricantís
reserve alkalinity for combating acids. The Cold Cranking Simulator Test
(CCS) measures a lubricantís viscosity at low temperatures and high shear
rates. The Four-Ball Wear Test measures a lubricantís wear protection
properties. The impressive test results show AMSOIL Synthetic 10W-30 Motor
Oil outperformed the competitors in each test.
Thin-Film Oxygen Uptake (ASTM D-4742):
The Thin-Film Oxygen Uptake Test evaluates the oxidation stability of
lubricating oils. A mixture of the test oil and chemistries found in
gasoline engine operation (oxidized/nitrated fuel, soluble metals and
distilled water) are placed in a test vessel, which is pressurized with
oxygen and placed in a heated bath. Anti-oxidant breakdown is evident when
the oxygen pressure in the vessel rapidly decreases. At this point, the
induction time (break point) of the oil is recorded. As shown in the graph,
AMSOIL Synthetic 10W-30 Motor Oil had the highest induction time of all the
tested oils. In fact, it didnít reach its break point in over 500 minutes of
The superior oxidation stability of AMSOIL Synthetic 10W-30 Motor Oil allows
it to effectively resist the formation of engine deposits and sludge,
keeping engines running clean and efficient and extending oil life. It also
resists thickening, maintaining its superior wear protection and lubricating
properties and maximizing fuel efficiency.
Temperature/High Shear (ASTM D-4683):
The High Temperature/High Shear Test measures a lubricantís viscosity under
severe high temperature and shear conditions that resemble highly-loaded
journal bearings in fired internal combustion engines. In order to prevent
bearing wear, it is important for a lubricant to maintain its protective
viscosity under severe operating conditions. The minimum High
Temperature/High Shear viscosity for a 30 weight oil is 2.9 cP. As shown in
the graph, AMSOIL Synthetic 10W-30 Motor Oil surpasses this minimum standard
and displayed the highest High Temperature/High Shear viscosity in the
The superior viscosity retention of AMSOIL Synthetic 10W-30 Motor Oil in the
face of severe temperature and shear conditions allows it to provide
continuous, unsurpassed protection for engine bearings, extending equipment
life and preventing wear.
Volatility (ASTM D-5800):
The NOACK Volatility Test determines the evaporation loss of lubricants in
high temperature service.The more motor oils vaporize, the thicker and
heavier they become, contributing to poor circulation, reduced fuel economy
and increased oil consumption, wear and emissions. A maximum of 15 percent
evaporation loss is allowable to meet API SL and ILSAC GF-3 specifications.
As shown in the graph, AMSOIL Synthetic 10W-30 Motor Oil outperformed its
nearest competitor by over 30 percent.
The extremely low volatility of AMSOIL Synthetic 10W-30 Motor Oil allows it
to maintain its superior protective and performance qualities throughout
extended drain intervals, even when faced with severe operating
temperatures. In addition, oil consumption and emissions are minimized and
fuel efficiency is maximized.
Point (ASTM D-97):
The Pour Point Test determines the lowest temperature at which a lubricant
will flow when cooled under prescribed conditions. The lower a lubricantís
pour point, the better protection it provides in low temperature service. As
shown in the graph, AMSOIL Synthetic 10W-30 Motor Oil has the lowest pour
point of the tested oils.
The low pour point of AMSOIL Synthetic 10W-30 Motor Oil allows it to
maintain its fluidity in extremely low temperatures, reducing drag on moving
vehicle parts, providing critical engine components with quick, essential
lubrication and easing startup in cold temperatures. Wear is greatly reduced
and equipment life is extended.
Base Number (ASTM D-2896):
Total Base Number (TBN) is the measurement of a lubricantís reserve
alkalinity, which aids in the control of acids formed during the combustion
process. The higher a motor oilís TBN, the more effective it is in
suspending wear-causing contaminants and reducing the corrosive effects of
acids over an extended period of time. As shown in the graph, AMSOIL
Synthetic 10W-30 Motor Oil has the highest TBN of the tested oils.
The high TBN of AMSOIL Synthetic 10W-30 Motor Oil allows it to effectively
combat wear-causing contaminants and acids, providing superior protection
and performance over extended drain intervals.
Crank Simulator (ASTM D-5293):
The Cold Crank Simulator Test determines the apparent viscosity of
lubricants at low temperatures and high shear rates. Viscosity of lubricants
under these conditions is directly related to engine cranking and
startability. The lower a lubricantís cold crank viscosity, the easier an
engine will turn over in cold temperatures. 10W motor oils are tested at
-25įC and must have a viscosity below 7000 cP to pass. As shown in the
graph, AMSOIL Synthetic 10W-30 Motor Oil is well below the maximum
requirement, while many of the competing oils barely pass.
The low cold crank viscosity of AMSOIL Synthetic 10W-30 Motor Oil reduces
drag on moving engine parts and allows engines to achieve critical cranking
speed in extremely frigid temperatures. Engines turn over quickly and
dependably in the coldest winter temperatures.
Ball Wear (ASTM D-4172):
The Four Ball Wear Test determines the wear protection properties of a
lubricant. Three metal balls are clamped together and covered with the test
lubricant, while a rotating fourth ball is pressed against them in sliding
contact. This contact typically produces a wear scar, which is measured and
recorded. The smaller the average wear scar, the better the wear protection
provided by the lubricant. As shown in the graph, AMSOIL Synthetic 10W-30
Motor Oil produced the smallest wear scar of the tested lubricants.
AMSOIL Synthetic 10W-30 Motor Oil provides unsurpassed protection against
engine wear. Equipment life is extended, and repairs, downtime and expenses
INC. has been the leader in synthetic motor oil formulation since its
introduction of the worldís first API rated synthetic motor oil in 1972. By
specializing exclusively in synthetic lubricant technology, AMSOIL is able
to optimize the most advanced chemistries available. The ďGenuine Synthetic
PAO FormulatedĒ designation displayed on AMSOIL packaging indicates that the
oils are formulated with Polyalphaolefin (PAO) synthetic base stocks. This
chemistry is the industryís premier base stock technology. Unlike
conventional mineral-based chemistries, AMSOIL PAO base stocks contain fully
saturated, hydrogenated molecules and are free of wax and other impurities.
Combined with an exact balance of premium additives, it delivers superior
hot and cold temperature performance, resists oxidation and acid formation
and provides long-term wear protection. AMSOIL ďGenuine Synthetic PAO
FormulatedĒ oils have shattered the parameters of the most rigorous industry
testing and set the standard for all other motor oils.
AMSOIL is the undisputed leader in
Synthetics have proven to be the BEST.
AMSOIL also engineers and manufactures Ea Oil
Filters with Nanofiber Technology which have a 25,000 mile/1-year service life as well as
specialized 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 (a standard
full flow oil filter can only filter to 20-25 microns, and at
a reduced efficiency) making oil changes virtually
unnecessary and virtually eliminating engine wear.
These filters have been proven by millions of miles of
over-the road trucks, construction equipment and fleet
AMSOIL saves you time and money.
The only 25,000 mile/one- year and 35,000/one-
year motor oil in the world.
Exceeds the most stringent performance
specifications of all major U.S. and foreign automotive and truck
Provides up to two-times the wear protection of
other motor oils.
Increases the life of your vehicle.
Improves performance, fuel economy and
Diesel oil and filtration products designed to
deliver 1,000,000 miles for over-the-road trucks before engine overhaul.
Used by many national racing teams, fleets,
police departments, construction firms and trucking companies.
is comprised of a group of highly skilled team of Engineers and Lubrication and
Filtration Specialists. 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 won't find a more knowledgeable
and skilled group of Dealers anywhere which is very important when you need
support as you build your business.
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.
Dealers in our Group will also receive an exclusive business
and internet promotional package.
Please, email us at
email@example.com for more details.
We do not only run our business 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
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.
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 extensive experience. This exceptional benefit is
Please, email us at
we will send you an exclusive
comprehensive package of product, technical and business information.
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 Direct Jobber, a Detroit, Michigan Truck/Automotive Engineer and
Lubrication Specialist with extensive 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.
To request a FREE Factory Direct Catalog
For Information on Becoming an AMSOIL Dealer
To Buy AMSOIL Products in the AMSOIL On-Line Store
Become a Preferred Customer- Purchase AMSOIL Products Factory Direct at
Wholesale Prices- Save About 25-30%
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 PowerSports Portal - We Put The Power in PowerSports
Diesel Power Site Forum for Power Stroke, Duramax and Dodge Cummins
AMSOIL is Proudly Made in the U.S.A.
AMSOIL is America's Oil.
Largest and Most Knowledgeable
AMSOIL Group in the U.S & Canada led by the only AMSOIL Regency Platinum 7 Star
Direct Jobber in the Organization who is also a former Ford Motor Company Senior Powertrain and Chassis Engineer.
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