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
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