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Amsoil - The Best in Synthetics®
AMSOIL - "Our Company makes the Best Lubricants in the world, period, and challenges anyone or any company to prove us wrong! That won't happen because our competitors know it's true."....... A. J. Amatuzio, President and CEO. |
API Motor Oil Comparison 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.
Feb 12, 2005: Amsoil has for decades paid independent labs to performance test their lubricants and those of the competition. Amsoil does not provide any oils for testing. The labs buy all the oils off the store shelves, runs the tests and delivers the results.
The competing oils included;
Petroleum-based |
Synthetic-based |
| Castrol GTX Drive Hard |
Valvoline Synpower |
| Mobil Drive Clean |
Quaker State |
| Pennzoil with Purebase |
Castrol Syntec |
| Quaker State Peak Performance |
Pennzoil |
| Valvoline |
Mobil 1 SuperSyn |
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 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.
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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 didn't reach its break point in over 500 minutes of testing.
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.
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High Temperature/High Shear (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 com-bustion engines. In order to prevent bearing wear, it is important for a lubri-cant 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 mini-mum standard and displayed the highest High Temperature/High Shear viscosity in the group.
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.
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NOACK 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 10W-30 Synthetic 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.
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Total Base Number (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.
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.
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Cold 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 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.
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.
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Four 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, down-time and expenses are reduced.
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| - AMSOIL - the best synthetics - |
Amsoil from 1972 has delivered a stellar lubrication product line with the highest level of performance, from wear prevention to fuel mileage savings in a product of vastly longer drain capabilities. Amsoil is proven to be the best oil available on the market by independent laboratory comparison tests and did exceptionally fine in my tests too.
What this means for you is unheard of convenience, the greatest fuel economy changine oil can do for your vehicle and piece of mind knowing the very best lubrication technology is protecting your vehicle beyond other synthetic oils and well beyond petroleum oil.
Do you think that oil is oil so who cares what I use?
Do you buy the cheapest oil you can thinking you're saving money?
Respectfully, know that petroleum oil does not save you money...
yes, it's the cheapest oil to buy, BUT NOT TO OWN
Like anything of quality, the benefits quality brings are why Amsoil is well worth your consideration. |
Amsoil has for decades compared the performance of their lubricants against the competition by hiring independent labs to performance test oil that the labratory buys off the store shelf.
Other oil companies don't publish their oil performance comparing theirs to the competition, why is that?
Amsoil openly publishes their results, reports such as these are readily available;
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Amsoil has never been sued for publishing its competitor's
oils (sometimes) embarrasing performance results.
This can mean but one thing. The results are true
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Producers of regular commodity grade motor oil would like you to think that 'oil is oil' so shop for the cheapest as it's all the same anyway! And they're right actually, regular motor oils do tend to be the same in performance capability except regular grade oil producers leave out the rest of the story! With the information available on this site you will come to know that;
There is a W I D E range of lubrication performance between great and regular commodity grade oil.
Advertising hype is everywhere with everyone claiming to have the best oil there is. This is very confusing on the surface, but you can determine very quickly if your oil of choice is a premium product or like 95% of the rest of the market, a commodity grade product no better than every other commodity grade product.
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Here's the question to ponder...
Does the manufacturer of the oil you use now openly compare
their products' performance to their competition?
Is the answer no?... with Amsoil the answer is yes...
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Speaks volumes about product performance and confidence in your product to do so don't you think?...
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Are API approved synthetic oils "good enough?", apparently not...
Lube's DIRTY Secret - (August 2003 Service Station and Garage Management)
"some lubricants sold in North America could actually be hazardous to engines..."
(full article...)
Conventional Oil Costs Carmaker $32 Million -
...owners weren't advised to use synthetic oil. (full article...)
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| "Lubes' n' Greases" Automotive Editor David McFall, once with the American Petroleum Institute tackled the issue of extended drain intervals in his March 2003 column, criticizing the standard 3,000-mile oil change and referring to the American motor oil market as "shackled."
"Lubes' n' Greases" December 2003: Addressing the ethical aspects of keeping drain intervals shortened, David McFall declares, the current stance of the oil industry “comes at a high environmental price.” December 2003 column |
Amsoil, the Company of Firsts is the largest independent synthetic oil manufacturer in the world and has a documented history of innovation and leadership.
Here's some background:
- First to develop an API-rated 100 percent synthetic motor oil.
- First to introduce the concept of "extended drain intervals" with a recommended 25,000-mile/1-year drain interval.
- First U.S. company to utilize the NOACK volatility test as a standard of performance excellence.
- First to produce synthetic motor oils for diesel engines, racing engines, turbo and marine engines.
- First to introduce synthetic oils that legitimately contribute to improving fuel efficiency.
- First to manufacture synthetic gear lube for automotive use.
- First to manufacture a 100:1 pre-mix synthetic 2-cycle oil.
- First to manufacture a synthetic automatic transmission fluid for automotive use.
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MyAMSOIL Garage -
- Stores maintenance info for all your vehicles
- Delivers product recommendations
- Tracks oil and filter changes
- Emails maintenance reminders
- It is yours... for free and it is secure
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