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Motor Oil Test and Comparison

AMSOIL vs. Mobil 1

409,000-Miles Without An Oil Change

AMSOIL Excels in API Sequence IIIF Performance Test

Motor Oil Performance Tests & Comparisons

Temperature Extremes Call For Superior Motor Oils

Why Harley-Davidson Owners Choose AMSOIL

Synthetic Motorcycle Oil & Harley-Davidson Warranty Issues

AMSOIL Synthetic Gear Lube Outperforms Valvoline Gear Lube

8.2% More MPG With AMSOIL Synthetic Lubricants

AMSOIL Proves Superior In Clark County Field Test

AMSOIL Series 3000 Synthetic 5W-30 Heavy Duty Diesel Oil is Correct Choice for Jeff Foster Trucking

AMSOIL Products Improve Efficiency and Reduce Operating Costs for Gerlach Trucking

What is the Noack Volatility Test?

What is the Four-Ball Wear Test?

What is TBN?

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Equipment Manufacturers, Warranties and AMSOIL Synthetic Lubricants

Virtually all automobile manufacturers warrant their vehicles to remain free of defect in manufacture or workmanship for a certain mileage or time period. Whether an automaker will honor a warranty claim depends on the vehicle owner providing proper maintanance for the vehicle. For this reason, it is important for vehicle owners to maintain maintenance records. Proper maintenance includes installing appropriate oil and filters.

Automakers cannot deny warranty claims soley on the basis of using synthetic motor oil, and they cannot specify a certain oil brand to be used in their vehicles. Instead, they require the oil meets the appropriate API performance classification and SAE viscosity grade specified in the owners manual.


"Installation or the use of special materials does not, in and of itself, void the New Vehicle Limited Warranties."

Service and Parts Operations,
Chrysler Corporation


Many high performance vehicles are factory filled with synthetic motor oils and the manufacturers encourage continued use of synthetic motor oils in order to achieve maximum performance, including Cadillac, Chevrolet Corvette and Dodge Viper. Many other automobile manufactures neither recommend or discourage the use of synthetic motor oils, requiring only that the oil meets a certain viscosity grade and performance classification.

Automakers may not void warranties based solely on an owner's practice of extending oil drain intervals. Dealership personnel and district managers may be unaware of the serviceability of synthetic motor oils over an extended period, but they may not summarily dismiss a warranty claim based on the owner's practice of changing oil at extended intervals. To do so does not disprove a defect in manufacture or workmanship as the immediate cause of failure. Vehicle owners may appeal to a factory representative if the dealership and district manager do not satisfactorily settle the warranty claim. Factory representatives appreciate the value of used oil analysis and do consider preventive maintenance oil analysis reports in their evaluation of warranty claims, while post failure oil analysis is critically important to the disposition of a warranty claim. Their findings pull more weight than the opinions of dealerships or district managers.


"If engine damage otherwise covered by warranty was found to be unrelated to the engine lubricant, then the consumer's practice with regard to oil change intervals would not be a relevant consideration, and the warranty claim would be honored."

Fuels and Lubricants Division,
General Motors Research Laboratories


If used engine oil is discarded without an independent analysis, the dealership and vehicle manufacturer lose their evidence to support a claim that the oil, and not a mechanical problem, caused the failure. For example, sludge may be formed through several avenues, not all related to the oil's performance. Antifreeze contamination or nitration due to poor electronic sensor performance may cause sludge, and both may be directly related to a defect in vehicle manufacture or workmanship, but clearly neither may be blamed on oil.


"The New Vehicle Warranty would not be void simply because an owner failed to use proper engine oils or did not perform maintenance at the prescribed intervals. Warranty applicability is contingent upon the cause of failure."

Service Policies and Procedures Department,
General Motors Corporation


Vehicle manufacturers base their owner's manual maintenance recommendations on their own research and to best protect their equipment based upon lubricants of varying quality, reliability and value in the marketplace. A move toward extended drain intervals is in progress now.

Ford recently extended its recommended drain interval to 7,500 miles in normal service conditions, while GM has been recommending increased intervals when indicated by its oil monitoring system.

AMSOIL offers superior synthetic motor oils fully capable of providing extended drain service. AMSOIL is committed to backing its products, as well as protecting the interests of its customers. Therefore, AMSOIL INC. offers its customers a warranty.


"AMSOIL INC. warrants that the use of its lubricants will not cause mechanical damage to any mechanically sound equipment when AMSOIL INC. products are used in full compliance with the company's recommendations and instructions."


FULL WARRANTY


AMSOIL synthetic motor oils are formulated to surpass engine test specifications, offering protection far greater than competing motor oils for extended drain intervals. Most synthetic oil manufacturers make no claim to extended drain intervals, deferring to the maintenance schedule provided by the vehicle manufacturer. With its unparalleled oil and warranty program, AMSOIL offers consumers unprecedented protection and economics.


Warranty Specifics

Any lubricant meeting viscosity and performance specifications may be used.
Vehicle manufacturers describe lubricants by their viscosity grade and service classification, which are defined by the Tripartite Committee, composed of the American Petroleum Institute (API), the Society of Automotive Engineers (SAE) and the American Society for Testing and Materials (ASTM). All AMSOIL synthetic motor oils state their SAE viscosity grade and API performance classification on the product container, and all are recommended for the highest performance classification for their application.

If personnel at a vehicle dealership claim that a vehicle warranty is void simply by using AMSOIL synthetic motor oil, obtain this statement in writing and send a copy to AMSOIL INC. AMSOIL INC. will follow up with the dealership.

The vehicle manufacturer may not specify by brand name the products you may use in your vehicle.
The Magnuson-Moss Act is a federal law which states that a manufacturer may not require the use of a specific brand of aftermarket product, including lubricants, unless that part is provided by the manufacturer free of charge. To do otherwise constitutes an infringement upon free trade.

If any representative of the vehicle dealership or manufacturer informs you that you must use a specific brand of lubricant or filter, obtain a written statement to that effect and send a copy to AMSOIL INC. AMSOIL INC. will follow-up.

Cause of failure is paramount to warranty claim payment.
Vehicle manufacturers warrant their products to be free of defect in manufacturer or workmanship. In order to avoid paying a warranty claim, a vehicle manufacturer must show a failure is not due to a defect in the manufacture or workmanship of the vehicle. The manufacturer may not arbitrarily blame a failure on the consumer's practice of changing oil at extended intervals.

Verbal notification of refusal to honor a claim is insufficient.
The refusal must be in writing and must state the specific reason a claim has been refused. If you still think a failure is due to a defect in vehicle manufacture or workmanship, contact the dealership, district manager, manufacturer or arbitrator.

The AMSOIL warranty assumes protection where the vehicle warranty stops.
AMSOIL offers complete protection to its customers through the finest line of lubricants and filters available and through the unique AMSOIL warranty. Customers following AMSOIL recommendations are protected by the AMSOIL warranty if they experience a failure caused by an AMSOIL product and the vehicle manufacturer won't honor it's warranty.

Customers are covered
As long as customers maintain their vehicles properly and follow either the vehicle manufacturer recommendations or AMSOIL recommendations, their vehicles are warranted against failure by either the vehicle manufacturer or AMSOIL INC. AMSOIL has had minimal warranty issues and virtually no issues with dealerships.


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Premium AMSOIL Synthetic Motor Oils offer the longest drain intervals on the market, unsurpassed protection and performance that effectively extends equipment life and improved fuel economy, saving customers money at the pump and reducing the nation's dependence on foreign oil.


Another AMSOIL First

More than 20 years ago, AMSOIL began using the NOACK volatility test as a comparison tool and measurement of quality. Back then, nearly every oil tested side-by-side with AMSOIL synthetic motor oils failed, and those that passed barely squeaked by. Other oil companies paid no attention to NOACK results until Ford Motor Company made it a requirement for service fill oils, validating what AMSOIL had said all along.


THE NOACK Volatility Test
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. AMSOIL Synthetic Motor Oil resists high temperature volatization better than other motor oils. AMSOIL Synthetic Motor Oil maintains peak fuel efficiency and reduces oil consumption and emissions.

AMSOIL Now An ISO Certified Manufacturer
AMSOIL recently received ISO 9001:2000 certification of our Quality Management System (QMS). NSF International Strategic Registrations is the registrar that has verified our QMS meets the requirements of the ISO 9001:2000 standard, the most widely utilized quality standard throughout the world for quality management systems. ISO standards are used by over 300,000 companies worldwide setting rigorous standards for businesses, government and industry.

ISO 9001:2000 is applicable to any manufacturing and service organization providing a framework for system development that focuses on the customer, quality system performance and ongoing improvement. AMSOIL received ISO 9001:2000 registration under the scope: synthetic lubricants blending, packaging, and other fulfillment directly associated with lubricant product.

The ISO certification puts AMSOIL in line with some of the most efficient companies in the world. It is further assurance that the products and services AMSOIL provides will continue to maintain the high level of quality the company always demanded.


AMSOIL Product Information

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Receive valuable weekly newsletter by email - please complete this form.

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Which AMSOIL Products Are Recommended For Your Car or Truck?
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What Drain Interval Does AMSOIL Recommended For Your Vehicle?
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