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US 2025/0092328 A1Published application
Lubricating oil composition for two-wheeled motor vehicles
AssigneeIdemitsu Kosan Co., Ltd.
InventorsTakato HARAYAMA, Yukitoshi FUJINAMI, Motoharu ISHIKAWA
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Abstract
A lubricating oil composition for two-wheeled motor vehicles including a base oil and a metal phenate and having a coefficient of friction measured of less than 0.0900. The lubricating oil composition in which a performance required for lubricating oil for engines is satisfied, and a good shift feeling is achieved while a high coefficient of friction is kept in a wet clutch.
Claims8
A lubricating oil composition, comprising:
- a base oil;
- and
- a metal phenate,
- wherein the lubricating oil composition has a coefficient of friction of less than 0.0900 when measured with a disk of a standard test piece (AISI 52100) and a ¾ inch ball of the same material for 2 hours, with a load of 30 N, at a speed of 100 mm/s, at an oil temperature of 80° C., and with a slip-to-roll ratio (SRR) of 50%.
1 more element
A method for producing a lubricating oil composition, comprising:
- mixing a base oil and a metal phenate,
- wherein a coefficient of friction of the lubricating oil is less than 0.0900 when measured with a disk of a standard test piece (AISI 52100) and a ¾ inch ball of the same material for 2 hours, with a load of 30 N, at a speed of 100 mm/s, at an oil temperature of 80° C., and with a slip-to-roll ratio (SRR) of 50%.
Dependencies are inferred from the claim text.