Title:
LONG-LIFE FUEL-SAVING ENGINE OIL COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2006/115097
Kind Code:
A1
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 in terms of molybdenum amount. The long-life fuel-saving engine oil composition has excellent oxidative stability at high temperatures and retains low-frictional properties over long.
Inventors:
NAITO YASUSHI (JP)
YAMASHITA MINORU (JP)
MIYAJIMA KAZUHIRO (JP)
YAMASHITA MINORU (JP)
MIYAJIMA KAZUHIRO (JP)
Application Number:
PCT/JP2006/308058
Publication Date:
November 02, 2006
Filing Date:
April 17, 2006
Export Citation:
Assignee:
JAPAN ENERGY CORP (JP)
TOYOTA MOTOR CORP (JP)
NAITO YASUSHI (JP)
YAMASHITA MINORU (JP)
MIYAJIMA KAZUHIRO (JP)
TOYOTA MOTOR CORP (JP)
NAITO YASUSHI (JP)
YAMASHITA MINORU (JP)
MIYAJIMA KAZUHIRO (JP)
International Classes:
C10M141/08; C10M129/76; C10M133/12; C10M135/18; C10N10/12; C10N30/06; C10N30/08; C10N30/10; C10N40/25
Foreign 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 |
Other References:
See also references of EP 1878784A4
None
None
Attorney, Agent or Firm:
Ishii, Yoshio (7-7 Toranomon 2-chom, Minato-ku Tokyo, JP)
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