Polycyclic thiophene lubricating oil additive and method of reducing coking tendencies of lubricating oils

摘要

Inexpensive lubricating oil antioxidants having a solubilizing group which comprises alkyl and cycloalkyl-substituted aromatics and a reducing thiophenyl group, which are useful motor oil additives. Method of reducing coking tendencies of lubricating oils by incorporating the substituted aromatic antioxidants.