Lubricant composition
AssigneeIdemitsu Kosan Co., Ltd.
InventorsHiroyuki TATSUMI, Kazushige MATSUBARA
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Abstract
A lubricating oil composition, containing the following components a base oil (A), a thiadiazole-based compound (B), and a boron-modified alkenyl succinimide (C). A content of the component (B) is less than 0.60 mass % based on a total amount of the lubricating oil composition, a content ratio [B/N] by mass of boron atoms to nitrogen atoms derived from the component (C) is 0.35 or more, and a content of boron atoms derived from the component (C) is 300 ppm by mass or less based on the total amount of the lubricating oil composition.
Claims14
A lubricating oil composition, comprising the following components:
- a base oil (A);
- a thiadiazole-based compound (B), and
- a boron-modified alkenyl succinimide (C),
- wherein
- a content of the component (B) is less than 0.60 mass % based on a total amount of the lubricating oil composition,
- a content ratio [B/N] by mass of boron atoms to nitrogen atoms derived from the component (C) is 0.35 or more, and
- a content of boron atoms derived from the component (C) is 300 ppm by mass or less based on the total amount of the lubricating oil composition.
(canceled)
Dependencies are inferred from the claim text.