They warranty your engine against "oil failure" for 150,000 on the cheap stuff (dino) and 300,000 for the good stuff (syn).
So, if SM oils are problematic on older vehicles (cam wear, which is mentioned often here, let's say) doesn't this argue for the robustness of SM oils?
Call me a sucker, but I heard their ad and it eased my mind a bit about the issue of SL vs. SM oils. (By the way, by no means am I saying this closes the issue or ends the debate.)
http://www.engineguarantee.com/display_page?page=guarantee_details_150k&locale=en_US#filingAClaim
So, if SM oils are problematic on older vehicles (cam wear, which is mentioned often here, let's say) doesn't this argue for the robustness of SM oils?
Call me a sucker, but I heard their ad and it eased my mind a bit about the issue of SL vs. SM oils. (By the way, by no means am I saying this closes the issue or ends the debate.)
http://www.engineguarantee.com/display_page?page=guarantee_details_150k&locale=en_US#filingAClaim