USE OF A LUBRICANT COMPOSITION FOR COMBUSTION ENGINE CONTAINING DISPERSANT ADDITIVE AND POLYMER DISPERSANT VISCOSITY INDEX IMPROVER TO ENHANCE ANTIWEAR PROPERTIES

USE OF A LUBRICANT COMPOSITION FOR COMBUSTION ENGINE CONTAINING DISPERSANT ADDITIVE AND POLYMER DISPERSANT VISCOSITY INDEX IMPROVER TO ENHANCE ANTIWEAR PROPERTIES

A multigrade lubricating oil composition with enhanced anti-wear properties for use in an internal combustion engine comprises (a) a base oil comprising at least 90 % by weight of the base oil, of one or more basestocks selected from the group consisting of base stocks derived from Fischer-Tropsch s...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: BHASKARAN, ASHA, LAMB, GORDON, DAVID, ADAMS, IEUAN, STEPHEN
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CHEMISTRY
FUELS
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 multigrade lubricating oil composition with enhanced anti-wear properties for use in an internal combustion engine comprises (a) a base oil comprising at least 90 % by weight of the base oil, of one or more basestocks selected from the group consisting of base stocks derived from Fischer-Tropsch synthesised, waxy, paraffinic hydrocarbon material by processes comprising hydrocracking and/or hydroisomerisation, Group II basestocks, Group III basestocks and mixtures thereof; (b) one or more dispersant viscosity modifiers in a total amount of 0.15 to 0.8 % by weight of the composition; and (c) one or more dispersants in a total amount of active dispersants of 1.5 to 3 % by weight of the composition.