No, no certifications. I should have said: "Tribodyn 'claims' to have or meet service classifications: for gasoline engines domestic & foreign. It claims to meet or exceed the following service classifications when API SP, SN Plus, SN, SM, SL, SJ & ILSAC GF-6A, GF-5, GF-4, etc., are required, & also exceeds GM Dexos1 Gen 2 specifications for all GM automotive gasoline motors currently in use.