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Why aren all AMSOIL motor oils API licensed?

April 26, 2017AMSOIL API licensed motor Oils

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Why aren all AMSOIL motor oils API licensed?

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Good question. Let us address API licensing in depth, as well as the issue of warranties. Some AMSOIL motor oils are API licensed, some are not. If you’re concerned about your warranty and feel pressures to use an API licensed oil, even after reading this answer, then the XL 5W-20 (XLM), 5W-30 (XLF), 10W-30 (XLT) and 10W-40 (XLO) or our 15W-40 (PCO) API licensed oils should be your choice. If you are looking for an alternative to frequent oil changes or just want the best performing oil for your car, then one of our top tier non-API licensed synthetic oils are for you. Read on, and decide for yourself. Click HERE to read more about API licensing.