Hello, it appears that Mobil 1 is now a Group III based oil. I understand that the "finished product" is ultimately what matters so focusing strictly on the base oil isn't a good measure of total quality. My question for you is other than the XL line, do any of the ASL/ATM/TSO oils use any Group III base oils? Thanks for your time.
Quote:To be fair about this, it appears Amsoil's wording is not much different then Mobil's. Ed makes a valid point.
Thank you for contacting AMSOIL with your concerns. While AMSOIL has publicly stated that it's XL motor oils are Group III based and its other motor oils are PAO based, specific formulary information beyond that is exclusive and proprietary. AMSOIL's commitment is to performance and not to a particular base oil. AMSOIL is committed to using the technology which delivers that performance, be it PAO or whatever. It should be noted what makes AMSOIL products great is our formulation of key ingredients that comes from years of accumulated experience and technical know-how. It is not just one ingredient. As you stated and we agree, it is the final product that matters. Thank you again for the opportunity to respond to your concerns. As always, please feel free to contact us again if we can be of further assistance. Sincerely, Ed Kellerman AMSOIL Technical Advisor