Lubricating compositions and concentrates

A lubricating oil composition comprising a major amount of an oil of lubricating viscosity and

• (A) at least about 1% by weight of at least one carboxylic derivative composition produced by reacting
• (A-1) at least one substituted succinic acylating agent with
• (A-2) from about 0.5 equivalent up to about 2 moles, per equivalent of acylating agent (A-1), of at least one amine compound characterized by the presence within its structure of at least one HN<
• group wherein said substituted succinic acylating agents consist of substituent groups and succinic groups wherein the substituent groups are derived from polyalkene, said polyalkene being characterized by an Mn value of 1300 to about 5000 and an Mw/Mn value of about 1.5 to about 4.5, said acylating agents being characterized by the presence within their structure of an average of at least 1.3 succinic groups for each equivalent weight of substituent groups;
• (B) an amount of at least one alkali metal overbased salt of a hydrocarbyl substituted carboxylic acid containing at least about 50 carbon atoms in the hydrocarbyl substituent or a mixture of a carboxylic acid and a hydrocarbyl-substituted sulfonic acid sufficient to provide at least about 0.002 up to about 0.01 equivalent of alkali metal per 100 grams of the lubricating oil composition provided that when the alkali metal salt comprises a mixture of overbased alkali metal salts of a hydrocarbyl-substituted carboxylic acid and a sulfonic acid, then the carboxylic acid comprises more than 50% of the acid equivalents of the mixture;
• and either
• (C-1) at least one magnesium overbased salt of an acidic organic compound having a metal ratio of at least 3 provided that the lubricating composition is free of calcium overbased salts of acidic organic compound having a metal ratio of at least 3;
• or
• (C-2) at least one calcium overbased salt of an acidic organic compound having a metal ratio of at least 3 provided that the lubricating composition is free of magnesium overbased salts of acidic organic compound having a metal ratio of at least 3.

A lubricating oil composition comprising a major amount of an oil of lubricating viscosity and

• (A) at least about 1.5% by weight of at least one carboxylic derivative composition produced by reacting
• (A-1) at least one substituted succinic acylating agent with
• (A-2) from about 0.7 equivalent up to about 1.5 equivalents, per equivalent of acylating agent (A-1), of at least one mine compound characterized by the presence within its structure of at least one HN<
• group wherein said substituted succinic acylating agents consist of substituent groups and succinic groups wherein the substituent groups are derived from polyalkene, said polyalkene being characterized by an Mn value of 1300 to about 5000 and an Mw/Mn value of about 1.5 to about 4.5, said acylating agents being characterized by the presence within their structure of an average of at least 1.3 succinic groups for each equivalent weight of substituent groups;
• (B) an amount of at least one alkali metal overbased salt of a hydrocarbyl substituted carboxylic acid containing at least about 50 carbon atoms in the hydrocarbyl substituent or a mixture of a hydrocarbyl-substituted carboxylic acid and a hydrocarbyl-substituted sulfonic acid wherein the carboxylic acid comprises more than 50% of the acid equivalents of the mixture and wherein the mount of the alkali metal overbased salt is sufficient to provide at least about 0.002 up to about 0.01 equivalent of alkali metal per 100 grams of the lubricating composition;
• and either
• (C-1) at least one magnesium overbased salt of an acidic organic compound having a metal ratio of at least 3, provided that the lubricating oil composition is free of calcium overbased sulfonate having a metal ratio of at least 3, or
• (C-2) at least one calcium overbased salt of an organic acid having a metal ratio of at least 3 provided the lubricating oil composition is free of magnesium overbased sulfonate having a metal ratio of at least 3;
• and
• (D) at least one metal dihydrocarbyl dithiophosphate;
• and
• (E) at least one antioxidant, provided that the antioxidant (E) and the dithiophosphate (D) are not the same.

A lubricating oil composition comprising a major amount of an oil of lubricating viscosity and

• (A) at least about 1.5% by weight of at least one carboxylic derivative composition produced by reacting
• (A-1) at least one substituted succinic acylating agent with
• (A-2) from about 0.7 equivalent up to about 1.5 equivalents, per equivalent of acylating agent, of at least one amine compound characterized by the presence within its structure of at least one HN<
• group wherein said substituted succinic acylating agents consist of substituent groups and succinic groups wherein the substituent groups are derived from polyalkene, said polyalkene being characterized by an Mn value of 1300 to about 5000 and an Mw/Mn value of about 1.5 to about 4.5, said acylating agents being characterized by the presence within their structure of an average of at least 1.3 succinic groups for each equivalent weight of substituent groups;
• (B) an amount of at least one alkali metal overbased salt of a hydrocarbyl-substituted carboxylic acid containing at least about 50 carbon atoms in the hydrocarbyl substituent or a mixture of a hydrocarbyl-substituted carboxylic acid and a hydrocarbyl-substituted sulfonic acid wherein the carboxylic acid comprises more than 50% of the acid equivalents of the mixture and wherein the amount of the alkali metal overbased salt is sufficient to provide at least about 0.002 up to about 0.01 equivalent of alkali metal per 100 grams of the lubricating composition;
• (C-1) at least one magnesium overbased metal salt of an acid organic compound having a metal ratio of at least 3, provided that the lubricating oil composition is free of calcium overbased sulfonate having a metal ratio of at least 3;
• (D) at least one metal dihydrocarbyl dithiophosphate;
• and
• (E) at least one antioxidant, provided that the antioxidant (E) and the dithiophosphate (D) are not the same.

A lubricating oil composition comprising a major mount of an oil of lubricating viscosity and

• (A) at least about 1.5% by weight of at least one carboxylic derivative composition produced by reacting
• (A-1) at least one substituted succinic acylating agent with
• (A-2) from about 0.7 equivalent up to about 1.5 equivalents, per equivalent of acylating agent, of at least one amine compound characterized by the presence within its structure of at least one HN<
• group wherein said substituted succinic acylating agents consist of substituent groups and succinic groups wherein the substituent groups are derived from polyalkene, said polyalkene being characterized by an Mn value of 1300 to about 5000 and an Mw/Mn value of about 1.5 to about 4.5, said acylating agents being characterized by the presence within their structure of an avenge of at least 13 succinic groups for each equivalent weight of substituent groups;
• (B) an amount of at least one alkali metal overbased salt of a hydrocarbyl-substituted carboxylic acid containing at least about 50 carbon atoms in the hydrocarbyl substituent or a mixture of a hydrocarbyl-substituted carboxylic acid and a hydrocarbyl-substituted sulfonic acid wherein the carboxylic acid comprises more than 50% of the acid equivalents of the mixture and wherein the amount of the alkali metal overbased salt is sufficient to provide at least about 0.002 up to about 0.01 equivalent of alkali metal per 100 grams of the lubricating composition;
• (C-2) at least one calcium overbased metal salt of an organic acid having a metal ratio of at least 3 provided the lubricating oil composition is free of magnesium overbased sulfonate having a metal ratio of at least 3;
• (D) at least one dihydrocarbyl dithiophosphate;
• (E) at least one antioxidant, provided that the antioxidant (E) and the dithiophosphate (D) are not the same, and
• (SD) a supplemental dispersant.

A lubricating oil composition prepared by blending a major amount of an oil of lubricating viscosity and

• (A) at least about 1% by weight of at least one carboxylic derivative composition produced by reacting
• (A-1) at least one substituted succinic acylating agent containing at least about 50 carbon atoms in the substituent with
• (A-2) from about 0.5 equivalent up to about 2 moles, per equivalent of acylating agent (A-1), of at least one amine compound characterized by the presence within its structure of at least one HN<
• group;
• (B) an mount of at least one alkali metal overbased salt of a hydrocarbyl-substituted carboxylic acid containing at least 50 carbon atoms in the hydrocarbyl substituent or a mixture of a hydrocarbyl carboxylic acid and a hydrocarbyl-substituted sulfonic acid sufficient to provide at least about 0.002 up to about 0.01 equivalent of alkali metal per 100 grams of the lubricating oil composition provided that when the alkali metal salt comprises a mixture of overbased alkali metal salts of a hydrocarbyl-substituted carboxylic acid and a hydrocarbyl-substituted sulfonic acid, then the carboxylic acid comprises more than 50% of the acid equivalents of the mixture;
• and either
• (C-1) at least one magnesium overbased salt of an acidic organic compound having a metal ratio of at least 3 provided that the lubricating composition is free of calcium overbased salts of acidic organic compound having a metal ratio of at least 3;
• or
• (C-2) at least one calcium overbased salt of an acidic organic compound having a metal ratio of at least 3 provided that the lubricating composition is free of magnesium overbased salts of acidic organic compound having a metal ratio of at least 3.

A lubricating oil composition prepared by blending a major amount of an oil of lubricating viscosity and

• (A) at least about 1.5% by weight of at least one carboxylic derivative composition produced by reacting
• (A-1) at least one substituted succinic acylating agent with
• (A-2) from about 0.7 equivalent up to about 1.5 equivalents, per equivalent of acylating agent, of at least one amine compound characterized by the presence within its structure of at least one HN<
• group wherein said substituted succinic acylating agents consist of substituent groups and succinic groups wherein the substituent groups are derived from polyalkene, said polyalkene being characterized by an Mn value of 1300 to about 5000 and an Mw/Mn value of about 1.5 to about 4.5, said acylating agents being characterized by the presence within their structure of an average of at least 1.3 succinic groups for each equivalent weight of substituent groups;
• and
• (B) an amount of at least one alkali metal overbased salt of a hydrocarbyl-substituted carboxylic acid containing at least about 50 carbon atoms in the hydrocarbyl substituent or a mixture of a hydrocarbyl-substituted carboxylic acid and a hydrocarbyl-substituted sulfonic acid wherein the carboxylic acid comprises more than 50% of the acid equivalents of the mixture and wherein the amount of the alkali metal overbased salt is sufficient to provide at least about 0.002 up to about 0.01 equivalent of alkali metal per 100 grams of the lubricating composition;
• and either
• (C-1) at least one magnesium overbased metal salt of an acidic organic compound having a metal ratio of at least 3, provided that the lubricating oil composition is free of calcium overbased sulfonate having a metal ratio of at least 3, or
• (C-2) at least one calcium overbased metal salt of an organic acid having a metal ratio of at least 3 provided the lubricating oil composition is free of magnesium overbased sulfonate having a metal ratio of at least 3;
• and
• (D) at least one metal dihydrocarbyl dithiophosphate;
• (E) at least one antioxidant, provided that the antioxidant (D) and the dithiophosphate (C) are not the same;
• and
• (SD) a supplemental dispersant.

A concentrate for preparing lubricating oil compositions containing at least about 0.002 up to about 0.01 equivalent of alkali metal per 100 grams of lubricating oil composition comprising from about 20% to about 90% by weight of a normally liquid, substantially inert organic diluent/solvent, and

• (A) from about 20 to about 80% by weight of at least one carboxylic derivative composition produced by reacting
• (A-1) at least one substituted succinic acylating agent with
• (A-2) from about 0.5 equivalent up to about 2 moles, per equivalent of acylating agent, of at least one amine compound characterized by the presence within its structure of at least one HN<
• group wherein said substituted succinic acylating agents consist of substituent groups and succinic groups wherein the substituent groups are derived from polyalkene, said polyalkene being characterized by an Mn value of 1300 to about 5000 and an Mw/Mn value of about 1.5 to about 4.5, said acylating agents being characterized by the presence within their structure of an average of at least 1.3 succinic groups for each equivalent weight of substituent groups;
• (B) from about 0.1 to about 20% by weight of at least one alkali metal overbased salt of a hydrocarbyl-substituted carboxylic acid containing at least about 50 carbon atoms in the hydrocarbyl substituent or a mixture of a hydrocarbyl carboxylic acid and a hydrocarbyl-substituted sulfonic acid provided that when the alkali metal salt comprises a mixture of overbased alkali metal salts of a hydrocarbyl-substituted carboxylic acid and a hydrocarbyl-substituted sulfonic acid, then the carboxylic acid comprises more than 50% of the acid equivalents of the mixture;
• and either
• (C-1) from about 0.1 to about 20% by weight of least one magnesium overbased salt of an acidic organic compound having a metal ratio of at least 3 provided that the lubricating composition is free of calcium overbased salts of acidic organic compound having a metal ratio of at least 3;
• or
• (C-2) from about 0.1 to about 20% by weight of at least one calcium overbased salt of an acidic organic compound having a metal ratio of at least 3 provided that the lubricating composition is free of magnesium overbased salts of acidic organic compound having a metal ratio of at least 3.