Vehicle Warranties

AMSOIL Synthetic Motor Oil Will Not Void Your
Auto, Truck, Motorcycle, or ATV Warranty

NOTE: The Big 3 U.S. auto manufacturers (General Motors, Ford and Chrysler) have taken the position that the use of synthetic motor oil does not void warranties. A few high performance cars now come from the factory with synthetic oils. Warranties are only affected if it is proven that the use of synthetic oil was the direct cause of mechanical failure. If you have heard from any member of a business that the use of AMSOIL motor oil will void warranties, send AMSOIL the details including the name of the business, business owner or manager and the individual making the claims, in a signed and dated letter. Send the letter to the Technical Services Department and an AMSOIL representative will send the business a letter explaining the facts.

According to a GM representative, "Warranty applicability is contingent upon the cause of failure and generally covers defects in material and workmanship only."

We have developed a specially formulated synthetic fluid called SYN3. This fluid can be used in Harley-Davidson engines, transmissions and primary chaincases. The use of a different brand of fluid does not void the one-year, unlimited mileage warranty useless it can be con determined that the use of such products was the cause of the failure

Lisa Sagen
Powertrain Customer Service Harley-Davidson Motor Company

While the installation or application of aftermarket products or oils will not void the Suzuki Manufactures Limited Warranty, any failures that result from the installation or use of those aftermarket products or oils will not be covered by the Manufactures Limited Warranty.

Damon Riddle
Customer Service Representative American Suzuki Motor Corporation

American Honda accepts the use of synthetic oils in our motorcycle engines as long as they meet our requirements.

Mike W.
Motorcycle Customer Support Department American Honda Motor Co., Inc.

All testing done on Yamaha products by Yamaha Motor Corporation, USA is done using Yamalube motor oils. While the use of any other equivalent type of motor oil is an option that the customer can use. The use of an oil other than Yamalube will not necessarily void the customer s warranty.

Jim Owen
Customer Relations Representative Yamaha Motor Corporation, USA

In regards to warranty, unless the cause of failure was determined to be a direct result of the synthetic fluid, it would remain intact. Warranty would not be voided simply from the use of synthetic fluid.

Laura Torres
Case Manager, Customer Connections Mitsubishi Motors North America

Please be aware that Kawasaki does not prohibit nor promote the use of synthetic oil in its products. Kawasaki uses only conventional motor oil for testing purposes. The Kawasaki warranty would not be voided by the use of synthetic oil in our products as long as they meet the requirements as stated in the owner's manual.

Nathan DePauw
Consumer Services Kawasaki Motors Corp., USA

AMSOIL PRODUCTS LIMITED WARRANTY  

The fact is there has never been an engine failure attributed to the nonperformance of AMSOIL products, and we do not expect there ever will be. If it ever did, both AMSOIL and our insurance company would make certain your problem was resolved. Only if the oil is determined to be the direct cause of the engine problem can a manufacturer or dealership deny warranty coverage for that specific problem. In this situation the AMSOIL warranty would apply, and the AMSOIL Technical Services Department would assist you in processing your claim and in getting the vehicle repaired. That's our pledge to you.

AMSOIL INC. sells millions of gallons of oil per year and warranty claims are a rare occurrence. If you ever have a warranty problem with an automobile manufacturer or dealership, AMSOIL will assist you by analyzing the problem and providing data supporting the fact that repairs should be made under the vehicle manufacturer's warranty. If this does not resolve the problem, AMSOIL will submit a claim with our insurance company and request that an adjuster have the vehicle repaired.

For more information see WARRANTY AND POLICIES

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