Lubricating oil compositions

Details Lubricating oil compositions Lubricating oil compositions

1998-05-01

2000-08-15

Howard, Jacqueline V.

Solid anti-friction devices, materials therefor, lubricant or se

Lubricants or separants for moving solid surfaces and...

Organic compound containing boron

508391, 508460, 508586, C10M10532

Patent

active

061036722

ABSTRACT:
An improved polybutene-free lubricant composition for marine diesel engines, comprising a major amount of oil of lubricating viscosity and, provided by admixing therewith, minor amounts of a) at least one of a borated dispersant or oil-soluble or oil-dispersible boron compound; and b) one or more overbased metal compounds the or each compound having a TBN of at least 300, with the proviso that if an overbased metal salicylate is present then the TBN of said salicylate is at least 200; wherein the TBN of the composition is at least 10 and the viscosity index of the composition is at least 90.

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patent: 5691283 (1997-11-01), Poat et al.
patent: 5719107 (1998-02-01), Outten et al.
patent: 5726133 (1998-03-01), Blahey et al.

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