Stabilization of hydrocracked oils against UV-light degradation with certain dihydroxy components

摘要

Hydrocracked lubricating oils are effectively stabilized against deterioration caused by light by the inclusion of at least one of certain dihydroxy components. Such component, e.g., 3,5-di-tert-butyl catechol and 4,6-di-tert-butyl resorcinol, provide outstanding inhibition to sunlight deterioration.