Patent ID: 8586516

Claim:
A super tractor oil universal lubricating composition comprising: a) an oil of lubricating viscosity having a viscosity index of at least about 95, formulated with additive components comprising: i) at least one metal detergent; ii) at least one phosphorus-based wear preventative, comprising phosphorus in an amount of about 200 ppm to about 400 ppm based on the total weight of the lubricating composition; iii) at least one oil soluble molybdenum compound, wherein an amount of molybdenum from the molybdenum compound ranges from about 10 ppm to no more than 200 ppm based on the total weight of the lubricating composition; b) characterized in that a ratio between a content (ppm) of metal based on the total weight of the lubricating composition and a total base number of the lubricating composition (mg KOH/g) ranges from about 210 to about 450 (ppm/mg KOH/g); c) a ratio between the content (ppm) of the metal based on the total weight of the lubricating composition and a content (ppm) of phosphorus based on the total weight of the lubricating composition ranges from about 5.0 to about 20.0 (ppm/ppm); and d) a ratio between the content (ppm) of phosphorus based on the total weight of the lubricating composition and a content (ppm) of molybdenum based on the total weight of the lubricating composition ranges from about 0.5 to about 80.0 (ppm/ppm), wherein the lubricating composition is further characterized as having no water separation and no precipitate in a water tolerance test wherein the water separation and precipitate are measured by mixing 199.2 mL of the lubricating composition with 0.8 mL water in a blender, storing 100 mL of the resulting sample in a centrifuge tube for seven days, and centrifuging the sample to determine separation in the oil.