The present technology includes an extreme pressure additive package formulated with a biodegradable sulfur component, which additive package can achieve suitable extreme pressure performance when formulated into a fully formulated industrial gear oil lubricant.

The present technology includes an extreme pressure additive package formulated with a biodegradable sulfur component, which additive package can achieve suitable extreme pressure performance when formulated into a fully formulated industrial gear oil lubricant.

Lubricant compositions comprising a base oil, one or more antioxidants selected from a group consisting of N-α-naphthyl-N-phenylamine antioxidants and diphenylamine antioxidants; and a sulfur-containing additive comprising up to seven carbon atoms exhibit outstanding oxidative stability and non-corrosion properties. The N-α-naphthyl-N-phenylamine antioxidants plus diphenylamine antioxidants in total may be present from about 0.2 wt % to about 0.8 wt %, based on the total weight of the lubricant composition. The sulfur provided by the sulfur-containing additive may be present from about 50 ppm to about 1000 ppm by weight, based on the total weight of the lubricant composition.

Lubricant compositions comprising a base oil, one or more antioxidants selected from a group consisting of N-α-naphthyl-N-phenylamine antioxidants and diphenylamine antioxidants; and a sulfur-containing additive comprising up to seven carbon atoms exhibit outstanding oxidative stability and non-corrosion properties. The N-α-naphthyl-N-phenylamine antioxidants plus diphenylamine antioxidants in total may be present from about 0.2 wt % to about 0.8 wt %, based on the total weight of the lubricant composition. The sulfur provided by the sulfur-containing additive may be present from about 50 ppm to about 1000 ppm by weight, based on the total weight of the lubricant composition.

A grease composition is intended primarily for use in constant velocity joints (CV joints), especially ball joints and/or tripod joints, which are used in the driveline of motor vehicles. The grease composition for use in constant velocity joints comprises at least one base oil, at least one thickener, zinc sulfide, as well as molybdenum disulfide and/or tungsten disulfide. Further, a constant velocity joint comprises the grease composition.

A grease composition is intended primarily for use in constant velocity joints (CV joints), especially ball joints and/or tripod joints, which are used in the driveline of motor vehicles. The grease composition for use in constant velocity joints comprises at least one base oil, at least one thickener, zinc sulfide, as well as molybdenum disulfide and/or tungsten disulfide. Further, a constant velocity joint comprises the grease composition.

A grease composition is intended primarily for use in constant velocity joints (CV joints), especially ball joints and/or tripod joints, which are used in the driveline of motor vehicles. The grease composition for use in constant velocity joints comprises at least one base oil, at least one thickener, zinc sulfide, as well as molybdenum disulfide and/or tungsten disulfide. Further, a constant velocity joint comprises the grease composition.

A grease composition is intended primarily for use in constant velocity joints (CV joints), especially ball joints and/or tripod joints, which are used in the driveline of motor vehicles. The grease composition for use in constant velocity joints comprises at least one base oil, at least one thickener, zinc sulfide, as well as molybdenum disulfide and/or tungsten disulfide. Further, a constant velocity joint comprises the grease composition.

Disclosed are a gear oil composition for automobiles containing at least (A) a base oil, (B) a sulfur-based extreme pressure agent, and (C) a phosphorus-based extreme pressure agent and satisfying specific requirements (i) and (ii), which is excellent in seizing resistance and wear resistance and also in fuel-saving performance, and a lubrication method using the gear oil composition.

Disclosed are a gear oil composition for automobiles containing at least (A) a base oil, (B) a sulfur-based extreme pressure agent, and (C) a phosphorus-based extreme pressure agent and satisfying specific requirements (i) and (ii), which is excellent in seizing resistance and wear resistance and also in fuel-saving performance, and a lubrication method using the gear oil composition.