Authorized AMSOIL Dealer Website
API Motor Oil Comparison Test Results-See who came out on Top
API Motor Oil Comparison Testing: Thinking all motor oil is the same? Think again!
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 comparison 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 motor oil comparison 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 lubricant’s 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 lubricant’s reserve alkalinity for combating acids. The Cold Cranking Simulator Test (CCS) measures a lubricant’s viscosity at low temperatures and high shear rates. The Four-Ball Wear Test measures a lubricant’s wear protection properties. The impressive test results show AMSOIL Synthetic 10W-30 Motor Oil outperformed the competitors in each test.
Thin-Film Oxygen Uptake (motor oil test - 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 didn’t reach its break point in over 500 minutes of
High Temperature/High Shear (motor oil test - ASTM D-4683):
The High Temperature/High Shear Test
measures a lubricant’s 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
AMSOIL Synthetic 10W-30 Motor Oil surpasses this
minimum standard and displayed the highest High
Temperature/High Shear viscosity in the group.
NOACK Volatility (motor oil test - 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.
Pour Point (motor oil test - 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 lubricant’s 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.
Total Base Number ( motor oil test - ASTM D-2896):
Total Base Number (TBN) is the
measurement of a lubricant’s reserve alkalinity, which aids
in the control of acids formed during the combustion
process. The higher a motor oil’s 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.
Cold Crank Simulator (motor oil test - 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 lubricant’s cold crank viscosity,
the easier an engine will turn over in cold temperatures.
10W motor oils are tested at -25°C 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.
Four Ball Wear (motor oil test - 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
AMSOIL Synthetic 10W-30 Motor Oil provides unsurpassed protection against engine wear. Equipment life is extended, and repairs, downtime and expenses are reduced.
AMSOIL INC. has been the leader in synthetic motor oil formulation since its introduction of the world’s 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 “Genuine Synthetic PAO Formulated” designation displayed on AMSOIL packaging indicates that the oils are formulated with Polyalphaolefin (PAO) synthetic base stocks. This chemistry is the industry’s 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 “Genuine Synthetic PAO Formulated” oils have shattered the parameters of the most rigorous industry motor oil tests and set the standard for all other motor oils.
Thinking all motor oil is the same? Think again!
Interested in becoming an AMSOIL Dealer?
Knowledge is Power! We have set up a plan to help you excel in your own AMSOIL Dealership. This is exclusive to dealers in our group only! With effort and the information we provide, you should be well on your way to creating a successful business. We have the knowledge base to help you succeed! We are the largest group in AMSOIL consisting of OEM Engineers, Designers and lubricant specialists. We are confident that our experience will provide an excellent source of knowledge and information while building your dealership or using AMSOIL synthetic products in your vehicles / equipment. AMSOIL has the warehouses, manufacturing, distribution systems and marketing plan already in place! All you have to do is use the tools offered and develop your own personal group of AMSOIL Dealers. AMSOIL is an excellent company to represent and the synthetic products are the best there is, period!
AMSOIL Synthetics Dust the Competition!
The Largest AMSOIL Dealer Group in the U.S.
Place Your Order Online Now - click here
AMSOIL is Proudly Made in the U.S.A. America's Oil.
AMSOIL Products: Wholesale Pricing Options
AMSOIL Synthetic Motor Oil - Designed Engine Oil, Lubricants, Air and Oil Filters and Greases - provide superior performance and protection. Ams oil saves you time, money, and wear on your vehicles and equipment!
AMZOIL Best Synthetic
Oil , Lubes & Filtration
Smart Synthetics- Synthetic Lubricants Automotive Link Directory
AMSOIL Synthetic Lubricants and Filtration products dramatically improve your vehicles performance, fuel economy and extend engine life. Independently Tested and Proven World's Best Synthetic Motor Oil. AMSOIL the Smart Synthetics!