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US 6,649,576 B2Granted
Lubricating oil compositions
AssigneeInfineum International Limited
InventorsIan A. W. Bell, Robert Robson
Life of this patent
Estimating the term…
Abstract
A crankcase lubricant containing a Group III basestock in a major amount and a Group V basestock in the form of an ester in a minor amount. The lubricant also comprises a dispersant, a metal detergent, one or more other additives, and a viscosity modifier.
Claims10
A crankcase lubricating oil composition comprising, or made by admixing, a major amount of
- (A) a basestock of lubricating viscosity comprising a Group III basestock, in a major amount, and a Group V basestock, in the form of a polyol ester, in a minor amount, other than basestocks that arise from provision of additive components in the composition;
- and minor amounts of lubricant additive components comprising
- (B) a dispersant;
- (C) a metal detergent;
- (D) one or more other lubricant additive components selected from anti-oxidants, anti-wear agent and friction modifiers;
- and
- (E) a viscosity modifier.
4 more elements
Dependencies are inferred from the claim text.