Abstract: This disclosure relates to functionalized polymers and compositions comprising such where the functionalized polymers comprise amide, imide, and/or ester functionalized partially or fully saturated polymer comprising C4-5 olefins having: i) an Mw/Mn of less than 2, ii) a Functionality Distribution (Fd) value of 3.5 or less, and iii) an Mn of 10,000 g/mol or more (GPC-PS) of the polymer prior to functionalization, provided that, if the polymer prior to functionalization is a copolymer of isoprene and butadiene, then the Mn of the copolymer is greater than 25,000 g/mol (GPC-PS).

Abstract: The present invention relates to lubricating oil compositions comprising sulfurised esters that exhibit good antioxidancy performance whilst maintaining nitrile elastomer seal compatibility

Abstract: A lubricating oil composition, more specifically a lubricating oil composition for heavy duty diesel (HDD) engines having a sulfated ash content of no greater than 1.0 mass %, such as from about 0.7 to 1.0 mass %, a sulfur content of no greater than 0.4 mass %, and a phosphorus content of no greater than 0.12 mass % (1200 ppm), such as from about 0.08 to 0.12 mass %; and a TBN of from about 7 to about 15, which lubricating oil composition includes a major amount of oil of lubricating viscosity, at least about 0.5 mass % of an ashless antioxidant selected from sulfur-free phenolic antioxidants, aminic antioxidants, and mixtures thereof, and a minor amount of overbased metal detergent, wherein at least about 60% of the TBN contributed to the lubricating oil composition by overbased detergent is contributed by overbased magnesium detergent.

Abstract: The present invention relates to lubricating oil compositions comprising sulfurised esters that exhibit good antioxidancy performance whilst maintaining nitrile elastomer seal compatibility

Abstract: SAE 0W and SAE 5W multigrade crankcase lubricating oil compositions for heavy duty diesel (HDD) engines meeting the performance requirements of at least one of the API CJ-4; API-CI-4, and/or ACEA A7 specifications, having a sulfated ash content of no greater than 1.0 mass %, a sulfur content of no greater than 0.4 mass %, and a phosphorus content of no greater than 0.12 mass %, formulated with a major amount of oil of lubricating viscosity including less than about 30 mass %, based on the total mass of oil of lubricating viscosity, of Group IV and/or Group V base stock, at least 0.3 mass %, of a non-hydrogenated olefin polymer; and greater than about 40 ppm, of boron.

Abstract: Linked aromatic compounds found to act as potent soot dispersants in lubricating oil compositions; lubricating oil compositions containing such soot dispersants and precursor compounds from which the soot dispersants are derived.

Abstract: A lubricating oil composition, more specifically a lubricating oil composition for heavy duty diesel (HDD) engines having a sulfated ash content of no greater than 1.0 mass %, such as from about 0.7 to 1.0 mass %, a sulfur content of no greater than 0.4 mass %, and a phosphorus content of no greater than 0.12 mass % (1200 ppm), such as from about 0.08 to 0.12 mass %; and a TBN of from about 7 to about 15, which lubricating oil composition includes a major amount of oil of lubricating viscosity, at least about 0.

Abstract: Lubricating oil compositions providing superior soot dispersing characteristics, which contain a combination of a high molecular weight dispersant and a soot dispersant comprising a linked aromatic oligomer.

Abstract: A lubricating oil composition having a total base number of at least about 8, comprising a major amount of oil of lubricating viscosity; an amount of one or more dihydrocarbyl dithiophosphate metal salt introducing into the lubricating oil composition no more than 0.06 wt. % of phosphorus; at least 1.2 wt. % of hindered phenol antioxidant; and boron, and/or a boron-containing compound or compounds in an amount providing the lubricating oil composition with at least 200 ppm by weight of boron, all weight percentages being based on the total weight of the lubricating oil composition.

Abstract: Lubricating oil compositions providing superior soot dispersing characteristics, which contain a combination of a high molecular weight dispersant and a soot dispersant comprising a linked aromatic oligomer.

Abstract: A lubricating oil composition having a total base number of at least about 8, comprising a major amount of oil of lubricating viscosity; an amount of one or more dihydrocarbyl dithiophosphate metal salt introducing into the lubricating oil composition no more than 0.06 wt. % of phosphorus; at least 1.2 wt. % of hindered phenol antioxidant; and boron, and/or a boron-containing compound or compounds in an amount providing the lubricating oil composition with at least 200 ppm by weight of boron, all weight percentages being based on the total weight of the lubricating oil composition.

Abstract: Lubricating oil compositions providing superior soot dispersing characteristics, which contain a combination of a high molecular weight dispersant and a soot dispersant comprising a linked aromatic oligomer.