Title:
LUBRICANT OIL COMPOSITION
Document Type and Number:
Japanese Patent JP2016113497
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a lubrication oil composition for an internal combustion engine reducing a frictional coefficient without deteriorating heat-oxidation stability and improving cleanliness.SOLUTION: Provided is a lubrication oil composition for an internal combustion engine in the components of a) to e): a) a lubrication base oil with a kinematic viscosity (100°C) of 2 to 12 mm/s by independently using or plurally combining API group 2 or 3 base oil having a viscosity index of 95 or more, a sulfur content of 0.03 mass% or lower and %C1 or lower; b) a nitrogen-containing ashless dispersant in which the value in terms of a nitrogen content is 0.01 to 0.3 mass%; c) a metal containing calcium and/or magnesium, in which the value in terms of an alkaline earth metal content is 0.05 to 0.3 mass%; d) zinc dialkyldithiophosphate in which the value in terms of a phosphorous content is 0.05 to 0.13 mass%; and e) a specified oil soluble semi-polar organic boron glycerin ester compound in which the value in terms of a boron content is 0.015 to 0.030 mass%.SELECTED DRAWING: None
Inventors:
UEDA MAO
HANYUDA KIYOSHI
KUBO KOICHI
HANYUDA KIYOSHI
KUBO KOICHI
Application Number:
JP2014251286A
Publication Date:
June 23, 2016
Filing Date:
December 11, 2014
Export Citation:
Assignee:
SHOWA SHELL SEKIYU
International Classes:
C10M169/04; C10M101/02; C10M129/40; C10M129/54; C10M129/72; C10M129/95; C10M133/16; C10M133/56; C10M135/10; C10M137/10; C10M139/00; C10M159/20; C10M159/22; C10M159/24
Domestic Patent References:
| JP2006182986A | 2006-07-13 | |||
| JPS5925891A | 1984-02-09 | |||
| JP2010100707A | 2010-05-06 | |||
| JP2011184566A | 2011-09-22 | |||
| JP2011057817A | 2011-03-24 | |||
| JP2011063654A | 2011-03-31 |
Attorney, Agent or Firm:
Ito On
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