METHOD FOR IMPROVING FUEL ECONOMY OF A HEAVY DUTY DIESEL ENGINE

Disclosed is a method for improving the fuel economy of a heavy duty diesel engine which produces a heavily sooted lubricating oil composition during the engine's normal operation. The method involves introducing lubricating the heavy duty diesel engine with a heavy duty diesel engine lubricati...

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Bibliographische Detailangaben
Hauptverfasser:	TOMAN, JEFFREY J, MILLER, TREVOR, BHALLA, GAURAV, SIMARD, FRANCOIS, SUEN, YAT FAN, YAMAGUCHI, ELAINE S
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL CHEMISTRY FIRELIGHTERS FUELS FUELS NOT OTHERWISE PROVIDED FOR INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATINGCOMPOSITIONS LIQUEFIED PETROLEUM GAS LUBRICANTS LUBRICATING COMPOSITIONS METALLURGY NATURAL GAS ORGANIC CHEMISTRY PEAT PETROLEUM, GAS OR COKE INDUSTRIES SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K TECHNICAL GASES CONTAINING CARBON MONOXIDE USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATINGINGREDIENTS IN A LUBRICATING COMPOSITION
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Beschreibung
Zusammenfassung:	Disclosed is a method for improving the fuel economy of a heavy duty diesel engine which produces a heavily sooted lubricating oil composition during the engine's normal operation. The method involves introducing lubricating the heavy duty diesel engine with a heavy duty diesel engine lubricating oil composition comprising (a) a major amount of an oil of lubricating viscosity; and (b) a minor effective amount of an ashless friction modifier comprising a reaction product of a C4 to about C75 fatty acid ester and a mono- or dialkanolamine.