Lubricating composition

20 A lubricant composition comprising:

• a major amount of a base oil;
• and
• a minor amount of an additive composition comprising,
• i. a triazole compound substituted with an aryl moiety;
• ii. at least one nitrogen containing compound chosen from an alkylated phenothiazine and a compound represented by the formula (I):
• wherein R0, R1 and R2 are each independently selected from the group consisting of an aryl moiety comprising from about 6 to about 30 carbon atoms, hydrogen, halogen, hydroxy, hydrocarbyl, substituted hydrocarbyl, amino, amido, phosphoro, and sulfono, with the proviso that at least one of R0, R1 and R2 are chosen to be an aryl moiety comprising from about 6 to about 30 carbon atoms;
• and
• iii. a metal detergent with a soap/TBN ratio ranging from about 0.05 to about 1.5.

A method of delaying the onset of viscosity increase in a lubricant composition, said method comprising:

• providing to a machine a lubricant composition comprising a major amount of a base oil;
• and a minor amount of an additive composition comprising
• i. a triazole compound substituted with an aryl moiety;
• ii. at least one nitrogen containing compound chosen from an alkylated phenothiazine and a compound represented by the formula (I):
• wherein R0, R1 and R2 are each independently selected from the group consisting of an aryl moiety comprising from about 6 to about 30 carbon atoms, hydrogen, halogen, hydroxy, hydrocarbyl, substituted hydrocarbyl, amino, amido, phosphoro, and sulfono, with the proviso that at least one of R0, R1 and R2 are chosen to be an aryl moiety comprising from about 6 to about 30 carbon atoms;
• and
• iii. a metal detergent with a soap/TBN ratio ranging from about 0.05 to about 1.5.

A method of lubricating at least one moving pad of a machine, said method comprising:

• contacting the at least one moving part with a lubricant composition comprising a major amount of a base oil and a minor amount of an additive composition comprising,
• i. a triazole compound substituted with an aryl moiety;
• ii. at least one nitrogen containing compound chosen from en alkylated phenothiazine and a compound represented by the formula (I):
• wherein R0, R1 and R2 are each independently selected from the group consisting of an aryl moiety comprising from about 6 to about 30 carbon atoms, hydrogen, halogen, hydroxy, hydrocarbyl, substituted hydrocarbyl, amino, amido, phosphoro, and sulfono, with the proviso that at least one of R0, R1 and R2 are chosen to be an aryl moiety comprising from about 6 to about 30 carbon atoms;
• and
• iii. a metal detergent with a soap/TBN ratio ranging from about 0.05 to about 1.5.

A method of operating a machine comprising:

• adding to the machine a lubricating composition comprising a major amount of a base oil;
• and a minor amount of an additive composition comprising
• i. a triazole compound substituted with an aryl moiety;
• ii. at least one nitrogen containing compound chosen from an alkylated phenothiazine and a compound represented by the formula (I):
• wherein R0, R1 and R2 are each independently selected from the group consisting of an aryl moiety comprising from about 6 to about 30 carbon atoms, hydrogen, halogen, hydroxy, hydrocarbyl, substituted hydrocarbyl, amino, amido, phosphoro, and sulfono, with the proviso that at least one of R0, R1 and R2 are chosen to be an aryl moiety comprising from about 6 to about 30 carbon atoms;
• and
• iii. a metal detergent with a soap/TBN ratio ranging from about 0.05 to about 1.5.