Reformulated, Repackaged XL Synthetic Motor Oils

AMSOIL XL Synthetic Motor Oils have been reformulated to last longer in service and meet the more stringent ILSAC GF-5 and API SN service categories. Available in four different viscosities, XL Synthetic Motor Oils are recommended for up to 10,000 miles or six months of service, whichever comes first, or longer when recommended in owners’ manuals or indicated by electronic oil life monitoring systems.

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Amsoil SAE 5W-20 XL Extended Life Synthetic Motor Oil

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Amsoil SAE 5W-30 XL Extended Life Synthetic Motor Oil

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Amsoil SAE 10W-30 XL Extended Life Synthetic Motor Oil

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Amsoil SAE 10W-40 XL Extended Life Synthetic Motor Oil

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Business Owners

Business owners, do you operate a quick lube, tire store, or service shop? Click HERE and register today to carry Amsoil at your business.

Consider, Amsoil XL:

1. XL is the next step up from Amsoil's fully synthetic OE motor oil line.
2. Oil change recommendation is set by Amsoil at 10,000-miles or 6-months.
3. Fully licensed by the American Petroleum Institute as API SN/GF-5
4. XL is compatible with petroleum and synthetic motor oils.
5. The 5W-30 version is compliant with the GM dexos1 specification.
6. Available in quarts, 30-gallon drums, 55-gallon drums and 275-gallon totes.

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AMSOIL INC. has been the recognized leader in synthetic lubricant and filtration products since 1972 producing the first 100% synthetic motor oil to be recognized by the American Petroleum Institute (API).


Amsoil Dealer info:


For more information about AMSOIL synthetic lubricants and performance filtration products contact Anthony Garner at Competition Synthetics. Anthony is an Amsoil T-1 Certified Independent Dealer. E-mail Anthony at compsyn@live.com, or visit http://competitionsynthetics.com

Muscle Car Tech

Objective:

Provide facts outlining lubrication requirements of flat tappet camshaft engines and the importance of higher levels of zinc and phosphorus.


Issues:

Flat tappet camshafts undergo extreme pressure and loads, thus requiring an engine oil that is fortified with anti-wear additives to provide premium protection. The severity of higher spring pressure in racing engines also creates the need for additional wear protection.

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Technical Discussion:

The most commonly used anti-wear additive in motor oils is zinc dialkyldithiophosphate (ZDDP). ZDDP contains both zinc and phosphorus components working together to provide anti-wear protection, and is most important during cam “break-in” procedures. Proper break-in lubes should be used during the break-in phase for all new or rebuilt engines with flat tappets. These lubricants provide the extra protection required to reduce wear at the point of contact during break-in and help the flat tappet face properly mate with the cam lobe. Once the break-in phase is completed, AMSOIL motor oils, which are formulated with high levels of zinc and phosphorus, will provide premium protection to flat tappet cams.

The American Petroleum Institute (API) and International Lubricants Standards Approval Committee (ILSAC) have mandated the reduction of phosphorus to extend catalytic converter life. However, reducing the level of ZDDP can compromise protection to engine components, most notably in flat tappet camshafts. Current API SM and ILSAC GF-4 specifications for gasoline engines have maximum and minimum phosphorus levels of 800 ppm and 600 ppm, respectively, for SAE 0W-20, SAE 5W-20, SAE 0W-30, SAE 5W-30 and SAE 10W-30 motor oils. All other gasoline SAE grades do not have a mandated phosphorus limit.

All engines, especially high-performance modified engines, benefit from oils with superior film strength and anti-wear properties. The flat tappet/camshaft lobe interface is the one area in an engine that has extreme contact load. Since this load increases significantly when non-stock, high-pressure valve springs are employed, the use of properly formulated motor oils is extremely important to reduce wear and extend flat tappet/ camshaft life.

Recommendation:

AMSOIL recommends motor oils containing high levels of zinc/phosphorus for superior protection. The table below lists many of the AMSOIL synthetic motor oils that are formulated with high levels of anti-wear additives:

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AMSOIL AMO, ARO, HDD, AME, RD20, RD30, RD50 and AHR all contain high levels of zinc/phosphorus, maximizing flat tappet/camshaft life in stock modified and high-performance applications.

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AMSOIL 10W-40 (AMO) is a premium synthetic formulation which is recommended for API SL (gasoline)/CI-4 Plus (heavy-duty, on-road diesel) specified applications. It is an outstanding choice where high zinc containing protection is required in late model hot rods requiring extra camshaft protection.

*AMSOIL 10W-40 (AMO) is the offical motor oil used in the Amsoil/Mopar Muscle Engine Challenge*


Tech Article: Choosing The Best Oils For Your Mopar Engine - Lifeblood Picking The Right Oil For Your Mopar Muscle Car

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AMSOIL 20W-50 (ARO) is a premium synthetic formulation which is recommended for API SL (gasoline)/CI-4 Plus (heavy-duty, on-road diesel) specified applications. It is an outstanding choice where high zinc containing protection is required in late model hot rods requiring extra camshaft protection.

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AMSOIL (HDD) is a 5W-30 weight combination diesel/gasoline oil with a higher starting TBN to handle the significant stresses from high soot loading and acid generation in modern diesel engines. HDD contains the high phosphorus and zinc required for long life.

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AMSOIL 15W-40 Synthetic Heavy Duty Diesel and Marine Motor Oil (AME) is engineered for use in a wide variety of light and heavy-duty applications. AME is formulated with high levels of zinc and phosphorus to ensure protection of flat tappet camshaft lobes in high performance diesel engines.

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AMSOIL Dominator Synthetic 5W-20, 10W-30 and 15W-50 Racing Oils (RD20, RD30, RD50) are all formulated with the same robust additive package. These oils are heavily fortified with zinc and phosphorus to protect flat tappet cams in the most extreme racing conditions.

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AMSOIL (AHR) is a super heavy SAE 60 weight racing oil de-signed for alcohol and nitro burning race engines where viscosity loss associated with fuel dilution is a concern. AHR includes a high dose of zinc containing anti-wear chemistry that race engines require.

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Buying high zinc motor oil? Pick up an oil or air filter for your vintage vehicle and save yourself a trip to the parts store.

Click on image for look-up guide

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At the Performance Racing Industry trade show in Orlando, Fla. in December 2006 AMSOIL announced its new affiliation with Mopar Muscle magazine to become “Official Oil” of the MOPAR Muscle Engine Challenge.

Amsoil: A Historical Account

As a result of studying various aspects of the lubricants industry, I came into contact with Tom Schaefer, former vice president of sales and marketing for the Hatco Corporation. Schaefer, now retired, periodically contributes helpful tidbits of information with respect to the motor oil industry.

In securing correspondence with Mr. Schaefer, I didn’t hesitate to ask him a few questions about Amsoil. I had recalled that Al Amatuzio utilized the Hatco Corporation to some degree in sixties for the development of Amsoil’s first synthetic motor oil. Compiled below is Mr. Schaefer’s recollection in regards to the Hatco/Amsoil historical account he personally witnessed.

"I joined Hatco in 1969, so I was there (in the lab at the time) when the Hatco/Amsoil relation began. Al Amatuzio was the driving force behind the motor oil development as it was his concept and he was developing the marketing structure to sell it. The formulating was done by Hatco and an additive company, and Hatco did the ester manufacturing and oil blending while Amsoil arranged the packaging & distribution, so it was a joint effort. I don't recall there were any formal R&D agreements, just a close working relationship, and the oils developed for Al were to his specifications and sold exclusively to Amsoil.

While others were selling synthetic motor oils before Amsoil, none were API certified oils and many failed. Amsoil was definitely the first company to market an API certified oil - 10W-40 SE/CC based on a diester. Yes the oil was formulated and manufactured by Hatco, but the concept, requirements, and marketing came from Al Amatuzio. Hatco had the technology but no means to market, while Al had the marketing capability but lacked the technology and manufacturing capability. It was a joint effort and neither could have succeeded without the other.

There was no API certification program back then, but yes the oil was fully tested in all of the API engine sequence tests and passed all of the SAE specifications for SE/CC. In addition, it was reviewed by a military review board and approved under MIL-L-46152. It was the real deal.

For the ancient history buffs, the oil was called Hatcol 2250 and contained Ditridecyl Adipate (diester), an Oronite DI package, a Rohm & Haas dispersant PMA type VII, and a supplemental anti-oxidant. It ran from 1972 to about 1976, at which point Hatco developed an improved version that later passed SF/CC.

Hatco and Amsoil departed company in the late 70s as Amsoil's volume grew to a point where it made sense for them to develop and blend their own products. I retired last year (2007) so I do not know what relationship they may have today." - Tom Schaefer

As an Amsoil Independent Dealer, having the distinct opportunity to converse with Mr. Schaefer and discover the actual historical facts about the early years of Amsoil, Inc. was a shear delight. Getting this data straight from such a credible source is greatly appreciated. Special thanks to to Tom Schaefer for his willingness to shed new light on this topic.

Tom Schaefer can be contacted at the Internet forum, http://www.bobistheoilguy.com under user name Tom NJ



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