Lubricating oil composition
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United States of America Patent
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Jan 18, 2011
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N/A
app pub date -
Mar 18, 2008
filing date -
Mar 19, 2007
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Abstract
is 1 or less, viscosity index is 115 or more, and CCS viscosity at −35° C. is 3000 mPa·s or less, wherein the lubricant base oil, to total mass of the composition, contains following components (A)˜(D):(A) 0.01˜10 mass % of ashless friction modifier;(B) 0.01˜0.2 mass % of phosphorus-containing anti-wear agent as phosphorous content;(C) 0.01˜1 mass % of metallic detergent as metal content; and(D) 0.01˜0.4 mass % of ashless dispersant having 3000˜20000 of weight-average molecular weight as nitrogen content.
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