The test results below were obtained by an independent lab. The 4-ball wear test is a standard ASTM test for determining a lubricants ability to prevent wear. The test is torturous to accelerate wear and produce wear scars between moving ball bearings under load, so a determination of long term wear prevention can be assessed. AMSOIL Synthetic engine oils produce the smallest wear scars and provides wear protection SUPERIOR to all other oils, whether conventional or synthetic! It actually SLOWS DOWN the wear and aging in your engine and will make it last much longer than normal, not to mention significantly better performance and fuel economy.

For additional comparison info, I have included the following chart with the most recent results of the 4-Ball Wear Test for AMSOIL Synthetic 20W-50 (TRO) and Redline 20W-50.

AMSOIL Synthetic 20W-50 (TRO) outperforms Redline 20W-50 in the 4-Ball Wear Test.

The 4-Ball Wear Test is a good indication of the wear protection provided by an oil under severe conditions. The smaller the wear scar, the better the protection.

Four-Ball Wear Test (ASTM D4172) 60 kg pressure @ 150°C, 1800 RPM, 1 hour As Tested February, 2002
Oil Tested	Wear Scar
AMSOIL Series 2000 20W-50 (TRO)	.44 mm
Redline 20W-50	.73 mm

In the Next Comparison, Redline 30w Oil Wear Test Results Resulted in Two Times More Damage than the Amsoil 30w Oil Test Results.

See Who's Oil is the Best - Additional ASTM Test Results of Redline and Amsoil oils:

Amsoil White Paper Gear Lubes

Dominator 5w-20 Racing Oil - wear protection test compared to Redline

Dominator 10w-30 Racing Oil - wear protection test compared to Redline

Dominator 15w-50 Racing Oil - wear protection test compared to Redline

I personally use Amsoil Synthetic 15w-50 Dominator Racing Oil and Severe Gear Lube in my ITE SCCA Road Racing Dodge Viper.

Recently Redline Synthetic Oil Corporation mailed an article to AMSOIL Dealers outlining results of testing done on AMSOIL Series 2000 Synthetic 20W-50 Racing Oil and Redline products. AMSOIL finds the article flawed in both its marketing approach and scientific methodology.

Initial Redline testing of an unused sample of AMSOIL Series 2000 20W-50 Racing Oil in the ASTM D4172 Four Ball Wear Test yielded results consistent with those appearing on the Series 2000 label. That is, AMSOIL Series 2000 20W-50 provided nearly three times better wear protection than Redline 20W-50.

The article, however, goes on to report results of used oil testing using the ASTM D4172 Test. ASTM tests, as any informed entity in the lubricants industry knows, are designed for use with new (unused) lubricants, not used oil.

There are two problems with testing used oil. First, the conditions of testing are uncontrollable. While Redline states the service conditions under which the samples operated were the same, variables including fuel and glycol dilution, contaminant levels, filtration, driving conditions sampling techniques and many more are virtually impossible to control.

The second problem is repeatability. AMSOIL attempted to replicate Redline's findings by testing samples of used oil. The results were inconsistent with Redline's and failed to meet the repeatability requirements of the ASTM D4172 test method. This failure is the result of testing an oil along with its contaminants.

Redline's claim that their oil is designed to become more effective as it reacts with blow by gases is absurd. Clearly, if blow by gases improved the anti-wear characteristics of lubricants, then lubricant manufacturers would expose their products to such gases during the manufacturing process. The fact is, lubricant performance should not depend on the uncontrollable reactions of blow by gases with the oil.

Are AMSOIL Dominator Synthetic Racing Oils better than Redline? Yes!

When all the appropriate, scientifically valid, repeatable tests are applied Amsoil Dominator Racing Oils are clearly the better oil.

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AMSOIL is the undisputed leader in synthetics......

Since 1972, AMSOIL Synthetics have proven to be the BEST. AMSOIL also engineers and manufactures Super Duty Oil filters which have a 25,000 mile 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 with any degree of 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 service.

· AMSOIL saves you time and money.

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· Exceeds the most stringent performance specifications of all major U.S. and foreign automotive and truck manufacturers.

· Provides up to two-times the wear protection of other motor oils.

· Increases the life of your vehicle.

· Improves performance, fuel economy and efficiency.

· 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.

Enhanced Synthetic Oil 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.

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 goals.

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.

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Enhanced Synthetic Oil,

a Division of Racers Products, LLC

Kent Whiteman

Amsoil Regency Dealer

Ogden, Utah 84403

Phone Toll Free: 877-786-9582

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