Title:
長寿命省燃費型エンジン油組成物
Document Type and Number:
Japanese Patent JP5170637
Kind Code:
B2
Abstract:
A long-life fuel-saving engine oil composition which comprises a mineral and/or synthetic base oil; an amine antioxidant and a phenolic antioxidant added to the oil in a total amount of 1.2 mass % or larger in which the ratio of the mass amount of nitrogen (N) contained in the amine antioxidant to the mass amount of oxygen (O) contained in the phenolic antioxidant, (N/O), is 0.20-0.50; and MoDTC incorporated in an amount of 0.055 mass % or larger as molybdenum element amount. There is provided the long-life fuel-saving engine oil composition which has excellent oxidative stability at high temperatures and retains low-frictional properties over long.
Inventors:
Koji Naito
Minoru Yamashita
Kazuhiro Miyajima
Minoru Yamashita
Kazuhiro Miyajima
Application Number:
JP2007514586A
Publication Date:
March 27, 2013
Filing Date:
April 17, 2006
Export Citation:
Assignee:
jx Nikko Nisseki Energy Co., Ltd.
TOYOTA JIDOSHA KABUSHIKI KAISHA
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
C10M141/08; C10M129/76; C10M133/12; C10M135/18; C10N10/12; C10N30/06; C10N30/08; C10N30/10; C10N40/25
Domestic Patent References:
| JP2000192066A | 2000-07-11 | |||
| JPH09506119A | 1997-06-17 | |||
| JPH08176579A | 1996-07-09 | |||
| JPH03269094A | 1991-11-29 | |||
| JP2003336089A | 2003-11-28 | |||
| JP2000192068A | 2000-07-11 | |||
| JP2002053888A | 2002-02-19 |
Foreign References:
| WO1997023587A1 | 1997-07-03 |
Attorney, Agent or Firm:
Yoshio Ishii
Kyoko Yoshimi
Sanae Goto
Kiyoshi Fujino
Kyoko Yoshimi
Sanae Goto
Kiyoshi Fujino