An additive composition having low temperature viscosity...

Details An additive composition having low temperature viscosity... An additive composition having low temperature viscosity...

C - Chemistry, Metallurgy

10

M

C10M 159/20 (2006.01)

Patent

CA 2517118

An additive composition providing improved low temperature viscosity, corrosion and detergent properties when used in lubricating oils for internal combustion engines is presented. The additive composition comprises an unsulfurized carboxylate detergent-dispersant additive having been modified by incorporation of from about 3.2 wt % to 7.5 wt %, based on the total additive composition, of an alkaline earth metal salt of a linear, saturated carboxylic acid having from about 16 to about 20 carbon atoms and wherein the additive composition has a superalkalinization ratio of less than about 1.4:1, a TBN of less than about 200 and a sediment value of less than about 0.2 % by volume.

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