Lubricating oil composition
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United States of America Patent
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Jan 13, 1998
Grant Date -
N/A
app pub date -
Jul 15, 1996
filing date -
Jul 20, 1995
priority date (Note) -
Expired
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Abstract
A lubricating oil composition comprising a lubricating base oil, an amine salt of molybdic acid, and a molybdenmn dithiocarbamate and/or a molybdenum dithiophosphate, wherein the content of molybdenum derived from the amine salt of molybdic acid is 200 ppm by weight or more, the content of molybdenum derived from the molybdenum dithiocarbamate and/or the molybdenum dithiophosphate is 200 to 700 ppm by weight, and the total content of molybdemum is 400 ppm by weight or more. The lubricating oil composition can maintain the effect to decrease friction in engines for a long time without being affected by nitrogen oxide gases.
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