Patent ID: 8709986
Filing Date: 2014-04-29
Classification: C10M,C10N

Abstract:
1. A method for lubricating an internal combustion engine, comprising supplying to said engine a lubricating composition comprising: (a) at least about 80 percent by weight of an oil of lubricating viscosity; (b) at least about 25 parts per million and up to about 500 parts per million by weight of titanium in the form of an oil-soluble titanium alkoxide having a number average molecular weight of less than 20,000; (c) about 0.4 to about 5 percent by weight of an antioxidant other than a Ti-containing antioxidant, comprising a phenolic antioxidant, an aromatic amine, a sulfurized olefin, or a molybdenum compound, (d) about 0.2 to about 5 percent by weight of an overbased alkali metal- or calcium-containing salicylate detergent other than a Ti-containing detergent, and (e) at least about 70 parts per million and up to about 105 parts per million by weight of boron in the form of a soluble boron compound.