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Amsoil's History

During Lieutenant Colonel Al Amatuzio's 25 years as an award-winning jet fighter pilot, he gained a solid appreciation for the extradordinary lubricants that protected the engines of the jets he flew. He knew that only these lubricants, synthetic lubricants, could stand up to the demanding operating conditions of jet engines and the severe temperature extremes they encounter.

He knew also that the same outstanding performance benefits synthetic lubricants provide for jet engines would prove invaluable to car, truck, and other internal combustion engines.

In the mid-1960s, Al Amatuzio began an intense period of research and development. He assembled the industry's most knowledgeable chemists and directed the formulation of the first synthetic motor oil in the world to meet American Petroleum Institure service requirements.

The introduction of Amsoil synthetic motor oil in 1972 set all new standards for motor oil quality. Amsoil synthetic motor oil outperformed conventional petroleum motor oils on all counts. It was clear from the start that this innovative product would play a major role in engine performance and engine life.

Today, virtually every other motor oil manufacturer has recognized the superiority of synthetic lubricants and has followed the Amsoil lead with introductions of synthetic motor oils of their own. They spend millions of dollars advertising their "new" and "revolutionary" products. No one, however, can match Amsoil experience and technological know how. And no one delivers products like Amsoil. Accept no substitutes-Amsoil is "The First in Synthetics."

Know The Facts

Amsoil extended drain intervals means fewer oil changes, long term savings, and convenience.

Example: Conventional motor oil companies recommend 3,000-mile drain intervals.

Conventional 10W-30 Motor Oil (40 quarts need for 25,000 miles) 8 standard oil filters.

Amsoil recommends 25,000 miles/ 1-year drain intervals. Amsoil 10W-30 Synthetic Motor Oil (5 quarts needed for 25,000 miles), 1 Amsoil EA Oil Filter.

Even if you drive only 12,000 miles per year, the cost for Amsoil is less than you pay for petroleum oil now. And you still get better wear protection, lower engine temperatures, improve fuel efficiency and easier cold weather starts. All of these benefits add up to reduced operating costs and longer engine life. Change your oil and filter today and in 12 months change the oil and filter again. That's it! What could be more convenient and good for your vehicle, too?

Amsoil Vs. Mobil 1 Extended Performance

Independent ASTM Certified Laboratory Testing of the new Mobil 1 Extended Performance 10W-30 vs. Amsoil 10W-30 (and nine other major brand name motor oils) has been completed. Amsoil is the clear winner.

Mobil 1 EP evaporates 38% faster than Amsoil, Mobil 1 EP allows 18% more cold start friction than Amsoil, and Mobil 1 EP allows 22% more wear.

In addition, on the TFOUT test, the "Thin Film Oxygen Uptake Test" (ASTM D-4742), which provides a very good correlation to the drain interval capability of an oil, Amsoil passed the 500 minute cut-off mark with flying colors and still going strong, while Mobil 1 Extended Performance fell short at only 469 minutes. Once again, we say that Mobil 1 is a good quality product, however it does not compare to Amsoil and the test data clearly shows this.

Amsoil offers superior wear protection, easier cold starting, less high-temperature evaporation and longer guaranteed drain intervals of 25,000 miles/1-year (or 35,000 miles 1-year with the AMSOIL Severe Service 0W-30). Plus at Preferred Customer pricing you can have Amsoil shipped direct to
your door for about the same pricing as you'll pay for Mobil 1 Extended-Performance at the store.

Amsoil also offers 25,000 mile/1-year absolute efficiency EAO oil filers to compliment the Amsoil 25,000 mile/1-year, or Amsoil SSO 35,000 mile1-year line of synthetic motor oils. The graph below shows how Mobil 1 Extended Performance 5W-30 and other brands compare to AMSOIL SSO 0W-30.


Several years ago, Mobil accused Castrol Syntec of reformulating its synthetic by substituting other base stocks in place of its synthetic polyaphaolefins (PAO's) using hydroprocessing oil. Castrol has replaced the PAO synthetic base stock with hydroisomerized petroleum base stock. Hydrocracking, as it's called, is the highest level of petroleum refining. Castrol Syntec is not a Group 4 synthetic (such as Amsoil is) yet Castrol ended up winning the battle when the National Advertising Division of the Council of Better Business Bureaus ruled that Castrol could still market its oil as "synthetic" despite their new formulation. Basically, they expanded the definition of synthetics to include Group 3 hydroprocessed petroleum oil. This high profile case took place because synthetics are recognized as the market's best hope for growth. Synthetic oil sales have outpaced petroleum oil sales by a wide margin and the gap continues to widen every year. Consumers are getting smarter and demand the best for their vehicles. Read the full story on the Castrol issue in our informative articles section. Additionally, just as soon as Castrol won this battle, several other oil companies came up with hydroprocessed motor oils of their own and labeled these products to be "100% synthetic", when they still are Group 3 hydroprocessed petroleum oils and not full PAO Group 4 synthetics.

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