Abstract: A method for utilizing a lubricating oil composition in which the content of a metal-based cleaning agent (X) having a base value of 100 mgKOH/g or less is 630 mass ppm or less in terms of metal atoms, and the content of sulfated ash is 1.5 mass % or less. The method includes measuring at least one physical property value among the capacitance and the dielectric constant of the lubricating oil composition while using the lubricating oil composition, and evaluating the progress of degradation of the lubricating oil composition.

Abstract: Provided is a lubricating oil composition for a gas engine, comprising a base oil (A), a calcium-based detergent (B), and an alkenyl succinimide (C), wherein a content of calcium atoms is 0.09 to 0.17 mass % based on the total amount of the lubricating oil composition, the component (C) comprises a non-boron-modified alkenyl bis-succinimide (C1), and a content of boron atoms derived from the component (C) is less than 0.02 mass % based on the total amount of the lubricating oil composition.

Abstract: The present in relates to a lubricating oil composition for sliding member having a coating film, the lubricating oil composition containing a base oil; (A) a zinc dialkyldithiophosphate; and (B) a metallic detergent, wherein the content of sulfur atom (S) is 2,800 ppm by mass or less on the basis of the whole amount of the lubricating oil composition, and a mass ratio of the content of sulfur atom (S) and the content of metal atom (BM) derived from the component (B) [(S)/(BM)] in the lubricating oil composition is 0.07 or more and 2.90 or less.

Abstract: The present invention relates to a lubricating oil composition containing a base oil (A) and a viscosity index improver (B) such that in X-ray small-angle scattering spectra obtained through measurement at 40° C. and 100° C., a ratio [?|?(40)|/?|?(100)|] between ?|?(40)| and ?|?(100)|, each of which is an absolute value of a slope of a straight line calculated in a range of the scattering vector q as the x axis of from 0.1 nm ?1 to 1 nm ?by the least-squares method, is 1.5 or more.

Abstract: Provided is a lubricating oil composition capable of revealing fuel consumption reducing properties due to a friction reducing effect within a short period of time while having excellent fuel consumption reducing properties, specifically a lubricating oil composition of the present invention includes a base oil, a molybdenum dithiocarbamate, a calcium detergent, a magnesium detergent, and a boron-free succinimide, wherein the content of the molybdenum dithiocarbamate as converted into a molybdenum atom is 1,200 ppm by mass or less on a basis of the whole amount of the composition; the content of the boron-free succinimide as converted into a nitrogen atom is less than 1,200 ppm by mass on a basis of the whole amount of the composition; and a mass ratio of the molybdenum atom (Mo) to a magnesium atom (Mg) of the magnesium detergent [Mo/Mg] is 0.1 or more.

Abstract: To provide a lubricating oil composition that has good detergency irrespective of the small sulfated ash content thereof, and has a good friction reducing capability even after the deterioration thereof. The lubricating oil composition contains a base oil (A), a non-metal-containing sulfur antioxidant (B), and a hindered amine antioxidant (C) having one piperidine-derived skeleton in a molecule, and has a content of the non-metal-containing sulfur antioxidant (B) as converted in terms of sulfur atom of 800 ppm by mass or more based on the total amount of the lubricating oil composition, a content of the hindered amine antioxidant (C) as converted in terms of nitrogen atom of 100 ppm by mass or more and 400 ppm by mass or less based on the total amount of the lubricating oil composition, a sulfated ash content of 0.70% by mass or less, and a total base number of 4.0 mgKOH/g or more.

Abstract: Provided is a lubricating oil composition capable of revealing fuel consumption reducing properties due to a friction reducing effect within a short period of time while having excellent fuel consumption reducing properties, specifically a lubricating oil composition of the present invention includes a base oil, a molybdenum dithiocarbamate, a calcium detergent, a magnesium detergent, and a boron-free succinimide, wherein the content of the molybdenum dithiocarbamate as converted into a molybdenum atom is 1,200 ppm by mass or less on a basis of the whole amount of the composition; the content of the boron-free succinimide as converted into a nitrogen atom is less than 1,200 ppm by mass on a basis of the whole amount of the composition; and a mass ratio of the molybdenum atom (Mo) to a magnesium atom (Mg) of the magnesium detergent [Mo/Mg] is 0.1 or more.

Abstract: Provided are a lubricating oil composition for internal combustion engine, containing a lubricating base oil containing a mineral oil and/or a synthetic oil, (A) an overbased calcium salicylate, (B) an overbased magnesium detergent, (C) a binuclear and/or trinuclear organic molybdenum compound, (D) a phenol-based antioxidant, and (E) an amine-based antioxidant, wherein the component (C), the component (D), and the component (E) are contained in specified contents on the basis of the whole amount of the lubricating oil composition; a method for producing the lubricating oil composition for internal combustion engine; and a lubrication method including using the lubricating oil composition for internal combustion engine.

Abstract: The present in relates to a lubricating oil composition for sliding member having a coating film, the lubricating oil composition containing a base oil; (A) a zinc dialkyldithiophosphate; and (B) a metallic detergent, wherein the content of sulfur atom (S) is 2,800 ppm by mass or less on the basis of the whole amount of the lubricating oil composition, and a mass ratio of the content of sulfur atom (S) and the content of metal atom (BM) derived from the component (B) [(S)/(BM)] in the lubricating oil composition is 0.07 or more and 2.90 or less.

Abstract: Provided is a lubricating oil composition containing a base oil (A); a molybdenum dithiophosphate (B1) in an amount of 400 ppm by mass or more as expressed in terms of a molybdenum atom; an organic metal-based detergent (C1) containing a metal atom selected from an alkali metal atom and an alkaline earth metal atom in an amount of 1,400 ppm by mass or less as expressed in terms of the metal atom; and a hindered amine-based antioxidant (D1) in an amount of 900 ppm by mass or more as expressed in terms of a nitrogen atom, with a sulfated ash content being 0.70% by mass or less. The lubricating oil composition may be one in which the detergency, the wear resistance, and the friction-reducing effect are improved with a well balance while reducing the ash content.

Abstract: Provided is a lubricating oil composition capable of revealing fuel consumption reducing properties due to a friction reducing effect within a short period of time while having excellent fuel consumption reducing properties, specifically a lubricating oil composition of the present invention includes a base oil, a molybdenum dithiocarbamate, a calcium detergent, a magnesium detergent, and a boron-free succinimide, wherein the content of the molybdenum dithiocarbamate as converted into a molybdenum atom is 1,200 ppm by mass or less on a basis of the whole amount of the composition; the content of the boron-free succinimide as converted into a nitrogen atom is less than 1,200 ppm by mass on a basis of the whole amount of the composition; and a mass ratio of the molybdenum atom (Mo) to a magnesium atom (Mg) of the magnesium detergent [Mo/Mg] is 0.1 or more.

Abstract: Provided are a lubricating oil composition for internal combustion engine, containing a lubricating base oil containing a mineral oil and/or a synthetic oil, (A) an overbased calcium salicylate, (B) an overbased magnesium detergent, (C) a binuclear and/or trinuclear organic molybdenum compound, (D) a phenol-based antioxidant, and (E) an amine-based antioxidant, wherein the component (C), the component (D), and the component (E) are contained in specified contents on the basis of the whole amount of the lubricating oil composition; a method for producing the lubricating oil composition for internal combustion engine; and a lubrication method including using the lubricating oil composition for internal combustion engine.

Abstract: An object of the invention is to provide a propylene resin composition that can give shaped articles resistant to flaws such as scratches and glazed marks and having excellent mechanical characteristics. The invention achieves the object with a propylene resin composition obtained by blending 35 to 85 parts by weight of a propylene-ethylene random copolymer (A) having a melt flow rate (ASTM D1238, 230° C., 2.16 kg load) of 5 to 100 g/10 min and an ethylene content of 2 to 9 mol %; 5 to 25 parts by weight of an ethylene-?-olefin copolymer (B) obtained by copolymerizing ethylene with one or more olefins selected from ?-olefins having 3 to 10 carbon atoms, and having a melt flow rate (ASTM D1238, 230° C., 2.16 kg load) of 0.1 to 80 g/10 min; 10 to 40 parts by weight of a fibrous filler (C) having an average fiber length of 0.1 to 2 mm and an average fiber diameter of 1 to 25 ?m; 0.01 to 1.0 part by weight of a lubricant (D); and 0.

Abstract: A polypropylene-based resin composition including 100 parts by weight of the following component (A), 18 parts by weight or more and 65 parts by weight or less of the following component (B), 6 parts by weight or more and 45 parts by weight or less of the following component (C), 25 parts by weight or more and 60 parts by weight or less of the following component (D), 0.1 part by weight or more and 6.5 parts by weight or less of the following component (E) and 0.15 part by weight or more and 5.0 parts or less by weight of the following component (F): (A) a specific propylene-ethylene block copolymer A: (B) a specific propylene-ethylene block copolymer B: (C) an ethylene-?-olefin copolymer having a melt flow rate (230° C., under the load of 2.16 kg) of 0.5 g/10 min or more and 20 g/10 min or less; (D) an inorganic filler having an average particle diameter of 1 ?m or more and 14 ?m or less; (E) an acid-modified polypropylene; and (F) a lubricant.

Abstract: A polypropylene-based resin composition including 100 parts by weight of the following component (A), 18 parts by weight or more and 65 parts by weight or less of the following component (B), 6 parts by weight or more and 45 parts by weight or less of the following component (C), 25 parts by weight or more and 60 parts by weight or less of the following component (D), 0.1 part by weight or more and 6.5 parts by weight or less of the following component (E) and 0.15 part by weight or more and 5.0 parts or less by weight of the following component (F): (A) a specific propylene-ethylene block copolymer A: (B) a specific propylene-ethylene block copolymer B: (C) an ethylene-?-olefin copolymer having a melt flow rate (230° C., under the load of 2.16 kg) of 0.