Disclosed is an oil composition with improved fuel economy and durability. The oil composition may be effective in improving fuel economy by reduction of friction on sliding parts of vehicle engines and in preventing abrasion of the engines by effective dispersion of soot in respective parts of the engines. The oil composition comprises a detergent dispersant, a friction reducer and a viscosity controller, which are suitably optimized at a mix ratio of those components.

A lubricant composition includes: an oil selected from among polyalkylene glycols (PAG); and a nitrogen compound selected from among amine phosphates or amine tungstates. The lubricant composition is particularly suitable for lubricating a vehicle engine, preferably a motor vehicle engine. Also disclosed is an engine lubrication method utilizing such composition.

The present disclosure provides a lithium complex grease with high-temperature resistivity and a method of making the same. The lithium complex grease includes: a lithium complex thickener, a friction modifier, a polymer or copolymer, and at least one synthetic base oil with alkylated naphthalene. The lithium complex grease can be substantially free of polytetrafluoroethylene. Furthermore, the lithium complex grease can have a median failure rate with via ball bearing test (e.g., using the FE9 grease life test method of DIN 51 821) performed at 160 C. of no less than 100 hours.

The present invention relates to lubricant compositions for motorcycle engines where the crankcase lubricant is also used to lubricate a wet clutch. The lubricant compositions contain antimony dithiocarbamates in combination with one or more ash-free friction modifiers.

A method for improving fuel efficiency and reducing frictional properties while maintaining or improving deposit control, in an engine lubricated with a lubricating oil. The lubricating engine oil has a composition including from 75 to 95 wt % of lubricating oil base stock selected from the group consisting of a Group I base stock, a Group II base stock, a Group III base stock, a Group IV base stock, a Group V base stock and combinations thereof; a friction modifier mixture comprising a polymeric ethoxylated fatty acid ester having a molecular weight of greater than or equal to 2000 at from 0.1 to 1.0 wt. % and an organic molybdenum containing friction modifier contributing from 80 to 500 ppm of elemental molybdenum, and an overbased calcium salicylate detergent contributing from 200 to 2000 ppm of elemental calcium; and one or more other lubricating oil additives. The lubricating engine oils are useful in internal combustion engines including direct injection, gasoline and diesel engines.

A lubricant composition for a direct injected, boosted, spark ignited internal combustion engine that contains at least one zirconium-containing compound is disclosed. This disclosure also relates to a method for preventing or reducing low speed pre-ignition in an engine lubricated with a formulated oil. The formulated oil has a composition comprising at least one oil soluble or oil dispersible zirconium-containing compound.

In the field of lubricating compositions, in particular to the Fuel Economy (FE) properties of lubricating compositions, there is disclosed the combined use of at least one derivative of molybdenum and at least one derivative of boron to maintain the Fuel Economy (FE) properties of a lubricating composition also including at least one base oil. Also disclosed is a use, within a lubricating composition including at least one base oil, of a combination of at least one derivative of molybdenum and at least one derivative of boron, and at least 30 ppm and at most 600 ppm of born boron relative to the weight of the lubricating composition to preserve the Fuel Economy (FE) properties of this lubricating composition.

Disclosed is a magnesium alkylhydroxybenzoate detergent and a lubricating oil composition comprising said detergent.

A broadband vibration motor and an electronic device are provided. The broadband vibration motor comprises a case, a vibrator, a coil and a reset part. The case comprises an inner cavity; the vibrator is arranged in the inner cavity, and the outer peripheral surface of the vibrator is provided with lubricating regulating oil, and the vibrator is suspended in the inner cavity through the lubricating regulating oil; the coil is used to drive the vibrator to vibrate, and the coil is arranged around the outside of the vibrator; the reset part is magnetic, and at least one reset part is correspondingly provided at both ends of the vibrator in the vibrating direction, and the reset part is disposed with the same pole opposite to the vibrator.

A lubricating oil composition that hardly generates precipitation attributable to a molybdenum compound under the low temperature environment and is excellent in a friction-reducing effect under the low temperature environment is provided. The lubricating oil composition is one including (A) a lubricating base oil, (B) a molybdenum-based compound, (C) a metal-based detergent, and (D) an ester compound having one or more hydroxyl groups in a molecule thereof, wherein the metal-based detergent (C) includes (C1) a calcium detergent and (C2) a magnesium detergent, and a content of the ester compound (D) having one or more hydroxyl groups in a molecule thereof is 0.03 to 1.20 mass % on a basis of the total amount of the lubricating oil composition.