Lubricating oil compositions, comprising an amorphous olefin copolymer, which have improved friction properties

摘要

Disclosed herein is a lubricating composition comprising a mixture of: (a) one or more base stocks selected from the group consisting of Group II base stock, Group III base stocks, and wax isomerates; and (b) an amorphous olefin copolymer. These compositions can provide substantial reductions in the coefficient of friction and fuel economy improving benefits when admixed to lubricating oils without deleterious effects such as instability, undesirable high viscosities and deposits.