公开(公告)号：US20210087489A1

公开(公告)日：2021-03-25

申请号：US17022817

申请日：2020-09-16

Applicant: BASF SE

Inventor： Michael Hoey ,  Thomas E. Hayden ,  Eugene Scanlon ,  Marinus Vaarkamp

IPC: C10M133/12 ,  C10M151/02 ,  C10M151/04

Abstract: Disclosed herein is a process for lubricating an internal combustion engine with a lubricant composition that may be substantially ash free. The ashless lubricant composition described herein may comprise primary antioxidants, such as aminic diphenyl amines, alkylated phenyl-naphthyl amines, and phenolic antioxidants. The ashless lubricant composition described herein may also comprise sulfur containing products that may work as secondary antioxidants. Other components such as ashless antiwear components, dispersants, pour point depressants, friction modifiers, and metal deactivators may also be used to formulate an ashless lubricant composition according to an embodiment.