USE OF MOLYBDENUM COMPLEXES IN LUBRICATING OIL COMPOSITIONS FOR DIESEL ENGINES

The present invention is directed to a method for improving the performance of a sooted diesel oil and controlling soot induced viscosity increase by adding to a major amount of a diesel oil a minor amount of a composition comprising at least one compound having the formula Mo3SkLnQz and mixtures th...

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Bibliographische Detailangaben
Hauptverfasser: MCCONNACHIE, JONATHAN, FANG, HOWARD, LIH, STIEFEL, EDWARD, IRA
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:The present invention is directed to a method for improving the performance of a sooted diesel oil and controlling soot induced viscosity increase by adding to a major amount of a diesel oil a minor amount of a composition comprising at least one compound having the formula Mo3SkLnQz and mixtures thereof wherein the L are independently selected ligands having organo groups with a sufficient number of carbon atoms to render the compound soluble or dispersible in the oil, n is from 1 to 4, k varies from 4 through 10, Q is selected from the group of neutral electron donating compounds such as water, amines, alcohols, phosphines, and ethers, and z ranges from 0 to 5 and includes nonstoichiometric values.