Lubricating oil composition for internal combustion engine

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United States of America Patent

PATENT NO 11680221
APP PUB NO 20200181524A1
SERIAL NO

16614427

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Abstract

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A lubricating oil composition for an internal combustion engine, the composition including: a lubricating base oil comprising at least one mineral base oil or at least one synthetic base oil or any combination thereof, the lubricating base oil having a kinematic viscosity at 100° C. of 4.0 to 4.5 mm2/s and a NOACK evaporation loss at 250° C. of no more than 15 mass %; (A) a calcium-containing metallic detergent in an amount of no less than 1000 mass ppm and less than 2000 mass ppm in terms of calcium on the basis of the total mass of the composition; and optionally (C) a viscosity index improver in an amount of less than 1 mass % on the basis of the total mass of the composition.

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Patent Owner(s)

Patent OwnerAddress
ENEOS CORPORATION1-2 OTEMACHI 1-CHOME CHIYODA-KU TOKYO 100-8162

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hoshino, Koji Tokyo, JP 59 239
Matsuda, Hiromitsu Toyko, JP 14 51

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