Feel Secure Using AMSOIL Synthetic Lubricants For years, AMSOIL and its Dealers have actively addressed concerns over new vehicle and equipment warranties. As millions of satisfied AMSOIL customers know, using AMSOIL synthetic lubricants or practicing extended drain intervals do not void new vehicle or equipment warranties. Some original equipment manufacturers (OEMs), however, try to revive old fears about warranty coverage in an attempt to increase sales of their own, typically more-expensive, OEM-branded oils. Misleading OEM Practices OEMs 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. The tactic is especially pervasive in the powersports market. Some OEMs include warnings of catastrophic engine failure should a non-OEM oil be used. These are nothing more than fear tactics meant to strong-arm motorists and enthusiasts into buyin...