ENGINE OIL COMPOSITION

ENGINE OIL COMPOSITION

A fuel-saving-type engine oil composition is provided that exhibits a satisfactory friction-reducing effect in a low-viscosity engine oil without being constrained by, for example, high temperatures, low temperatures, low loads, or high loads. The engine oil composition includes: an engine oil havin...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SUMI, Taro, IINO, Shinji
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CHEMISTRY
FUELS
INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS
LUBRICANTS
LUBRICATING COMPOSITIONS
METALLURGY
PEAT
PETROLEUM, GAS OR COKE INDUSTRIES
TECHNICAL GASES CONTAINING CARBON MONOXIDE
USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION
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Beschreibung
Zusammenfassung:A fuel-saving-type engine oil composition is provided that exhibits a satisfactory friction-reducing effect in a low-viscosity engine oil without being constrained by, for example, high temperatures, low temperatures, low loads, or high loads. The engine oil composition includes: an engine oil having a low-temperature viscosity of from 0 to 10 in SAE viscosity grades and a high-temperature viscosity of from 4 to 20 in the SAE viscosity grades; and a molybdenum compound (A) represented by the following general formula (1):where R1to R4each independently represent a hydrocarbon group having 4 to 18 carbon atoms, and not all of R1to R4represent the same group, and when R1and R2represent the same group, R3and R4do not represent the same group, and X1to X4each independently represent a sulfur atom or an oxygen atom.