The Magnuson-Moss Act is a U. S. 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. (emphasis added).
OEM’s often suggest in owner’s manuals, advertisements or through dealership personnel that motorists and enthusiasts must use the OEM-branded oil to comply with the new vehicle or equipment warranty. Some OEMs include warnings of catastrophic engine failure should a non-OEM oil be used. These tactics are especially pervasive in the powersports market and are calculated to create uncertainly and fear in the consuming public to the point that many consumers feel they are at risk when using anything but OEM-branded lubricants. Generally, the public is unaware that it is illegal for a vehicle manufacturer to tie the warranty of its product to the use of the manufacturer’s own lubricant. Federal law seeks to ensure competition within the marketplace, and that specifically includes guaranteeing continuing warranty coverage outside the use of OEM-branded lubricants. In short, you have the right to use the oil of your choice. Any lubricant meeting performance specifications, or equivalent, and viscosity may be used.
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 will follow-up with the dealership.
As millions of satisfied AMSOIL customers know, using AMSOIL Synthetic Lubricants or practicing extended drain intervals does not void new vehicle or equipment warranties, even though some OEM’s have attempted to revive old fears about warranty coverage in an attempt to increase sales of their own, typically-more-expensive, OEM-branded oils. The Magnuson-Moss Warranty Act makes it illegal for companies to void warranties or deny coverage under the warranty simply because an aftermarket or recycled part was used. The manufacturer or dealer must show that the aftermarket or recycled part caused the need for repairs before denying the warranty claim. (http://www.ftc.gov/bcp/edu/pubs/consumer/alerts/alt192.shtm) (emphasis added).
AMSOIL has always offered protection to its customers through the AMSOIL Limited Warranty. Customers following AMSOIL recommendations are protected by the AMSOIL Limited Warranty if they experience a failure caused by an AMSOIL product. As long as customers maintain their vehicles properly and follow either the vehicle manufacturer recommendations or AMSOIL recommendations, their vehicles and equipment are warranted against failure by either the vehicle manufacturer or AMSOIL INC.. In the unlikely event of an AMSOIL lubrication-related issue, the AMSOIL Limited Warranty covers the cost to repair or replace the damaged components.
The Warranty Secure symbol is designed to reassure consumers that simply using AMSOIL Synthetic Lubricants in place of original equipment manufacturer (OEM)-branded lubricants, or practicing extended drain intervals when using AMSOIL lubricants, does not void new vehicle or equipment manufacturer warranties. Simply put, if the lubricant did not cause the problem, the OEM warranty cannot be voided, period.