Title:
省燃費性の内燃機関用潤滑油組成物
Document Type and Number:
Japanese Patent JP5773365
Kind Code:
B2
Abstract:
A fuel economical lubricating oil composition for internal combustion engines comprises a base oil and an additive composition comprising an overbased metal-containing detergent and a molybdenum-containing friction modifier, in which the overbased metal-containing detergent comprises calcium salicylate having an alkyl group having an average carbon atom number of 14-18, at least 60 mol.% of the alkyl group having a carbon atom number of 14-18, and calcium sulfonate having an alkyl group having an average carbon atom number of 20-24, at least 60 mol.% of the alkyl group having a carbon atom number of 20-24, and/or calcium salicylate having an alkyl group having an average carbon atom number of 20-28, at least 60 mol.% of the alkyl group having a carbon atom number of 20-28.
Inventors:
Nobuo Ushioda
Tsuyoshi Miyamoto
Yasuhiro Ogasawara
Tsuyoshi Miyamoto
Yasuhiro Ogasawara
Application Number:
JP2011286254A
Publication Date:
September 02, 2015
Filing Date:
December 27, 2011
Export Citation:
Assignee:
Chevron Japan Co., Ltd.
International Classes:
C10M163/00
Domestic Patent References:
| JP2010047667A | ||||
| JP2011132404A |
Attorney, Agent or Firm:
Asamura patent office