# US 2013/0157911 A1 · Diesel engine oils > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0157911 A1 - Document ID: US20130157911A1 - Status: Published application - Kind: A1 - Application number: 13/712,349 - Filed: 2012-12-12 - Published: 2013-06-20 - Earliest claimed: 2011-12-16 - Assignees: Chevron Oronite Company LLC - Inventors: Yue-Rong Li - Web page: https://patentgrep.com/patent/US20130157911A1 ## CPC - C10M 133/44: Five-membered ring containing nitrogen and carbon only - C10M 163/00: Lubricating compositions characterised by the additive being a mixture of a compound of unknown or incompletely defined constitution and a non-macromolecular compound, each of these compounds being essential - C10M 2203/1006: used as base material - C10M 2207/026: with tertiary alkyl groups - C10M 2207/028: Overbased salts thereof - C10M 2207/26: Overbased carboxylic acid salts - C10M 2207/262: derived from hydroxy substituted aromatic acids, e.g. salicylates - C10M 2215/064: Di- and triaryl amines - C10M 2215/28: Amides; Imides - C10M 2217/043: Mannich bases - C10M 2227/066: derived from Mo or W - C10N 2010/04: Groups 2 or 12 - C10N 2030/04: Detergent property or dispersant property - C10N 2040/252: {Diesel engines} - C10M: LUBRICATING COMPOSITIONS (well drilling compositions C09K8/02); USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION (mould release, i.e. separating, agents for metals B22C3/00, for plastics or substances in a plastic state, in general B29C33/56, for glass C03B40/02; textile lubricating compositions D06M11/00, D06M13/00, D06M15/00; immersion oils for microscopy G02B21/33) - C10N: INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS ## Abstract A lubricating oil additive composition comprising at least one carboxylate detergent wherein at least one of the carboxylate detergents has a TBN of the actives of greater than about 60 to about 200; at least one polyalkenyl succinimide; a first phenate detergent having a TBN of the actives of greater than about 60 to about 200; and a second phenate detergent having a TBN of the actives of greater than about 200 to about 400. ## Claims ### Claim 1 A lubricating oil additive composition comprising a. at least one carboxylate detergent wherein at least one of the carboxylate detergents has a TBN of the actives of greater than about 60 to about 200; b. at least one polyalkenyl succinimide; c. a first phenate detergent having a TBN of the actives of greater than about 60 to about 200; and d. a second phenate detergent having a TBN of the actives of greater than about 200 to about 400. ### Claim 2 (depends on 1) The lubricating oil additive composition of claim 1 wherein the polyalkenyl succinimide is a polyisobutenyl succinimide. ### Claim 3 (depends on 1) The lubricating oil additive composition of claim 1 wherein the first phenate detergent is an alkaline earth metal phenate detergent. ### Claim 4 (depends on 3) The lubricating oil additive composition of claim 3 wherein the alkaline earth metal phenate detergent is a calcium phenate detergent. ### Claim 5 (depends on 1) The lubricating oil additive composition of claim 1 wherein the second phenate detergent is an alkaline earth metal phenate detergent. ### Claim 6 (depends on 5) The lubricating oil additive composition of claim 5 wherein the alkaline earth metal phenate detergent is a calcium phenate detergent. ### Claim 7 A lubricating oil composition comprising a. a major amount of oil of lubricating viscosity; b. at least one carboxylate detergent wherein at least one of the carboxylate detergents has a TBN of the actives of greater than about 60 to about 200; c. at least one polyalkenyl succinimide; d. a first phenate detergent having a TBN of the actives of greater than about 60 to about 200; and e. a second phenate detergent having a TBN of the actives of greater than about 200 to about 400. ### Claim 8 (depends on 7) The lubricating oil composition of claim 7 wherein the lubricating oil composition is used as a railroad engine oil. ### Claim 9 A method for operating a diesel locomotive engine comprising lubricating said diesel locomotive engine with a lubricating oil composition comprising a. a major amount of an oil of lubricating viscosity; b. at least one carboxylate detergent wherein at least one of the carboxylate detergents has a TBN of the actives of greater than about 60 to about 200; c. at least one polyalkenyl succinimide; d. a first phenate detergent having a TBN of the actives of greater than about 60 to about 200; and e. a second phenate detergent having a TBN of the actives of greater than about 200 to about 400. ### Claim 10 A method of improving TBN retention wherein the lubricating oil composition comprises a. a major amount of an oil of lubricating viscosity; b. at least one carboxylate detergent wherein at least one of the carboxylate detergents has a TBN of the actives of greater than about 60 to about 200; c. at least one polyalkenyl succinimide; d. a first phenate detergent having a TBN of the actives of greater than about 60 to about 200; and e. a second phenate detergent having a TBN of the actives of greater than about 200 to about 400. ### Claim 11 A method for operating a diesel locomotive engine comprising lubricating said diesel locomotive engine with a lubricating oil composition comprising a. a major amount of an oil of lubricating viscosity; and b. at least one carboxylate detergent wherein at least one of the carboxylate detergents has a TBN of the actives of greater than about 60 to about 200; c. at least one polyalkenyl succinimide; d. a first phenate detergent having a TBN of the actives of greater than about 60 to about 200; and e. a second phenate detergent having a TBN of the actives of greater than about 200 to about 400. ### Claim 12 A method for operating an inland marine engine comprising lubricating said inland marine engine with a lubricating oil composition comprising a. a major amount of an oil of lubricating viscosity; and b. at least one carboxylate detergent wherein at least one of the carboxylate detergents has a TBN of the actives of greater than about 60 to about 200; c. at least one polyalkenyl succinimide; d. a first phenate detergent having a TBN of the actives of greater than about 60 to about 200; and e. a second phenate detergent having a TBN of the actives of greater than about 200 to about 400 ### Claim 13 A method of improving TBN retention comprising lubricating an engine with a lubricating oil composition having a. a major amount of an oil of lubricating viscosity; b. at least one carboxylate detergent wherein at least one of the carboxylate detergents has a TBN of the actives of greater than about 60 to about 200; c. at least one polyalkenyl succinimide; d. a first phenate detergent having a TBN of the actives of greater than about 60 to about 200; and e. a second phenate detergent having a TBN of the actives of greater than about 200 to about 400.