System oil composition for crosshead diesel engine
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United States of America Patent
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Dec 27, 2016
Grant Date -
Dec 25, 2014
app pub date -
Mar 8, 2012
filing date -
Sep 27, 2011
priority date (Note) -
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Abstract
The present invention relates to a system oil composition for crosshead diesel engines, the system oil composition having excellent heat resistance and being effective for improvement of fuel efficiency. More specifically, the present invention relates to a system oil composition for crosshead diesel engines in which the system oil composition includes a mineral oil and/or a synthetic oil as a base oil (A) and has a kinematic viscosity of at least 35 mm2/s at 50° C., a high-shear viscosity of at most 45 mPa·s at 50° C., and a high-shear viscosity of at least 15 mPa·s at 70° C.
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