Green lubricant compositions
View Patent ↗The present invention is directed to green lubricant compositions comprising a base oil and an effective amount of premixed additives that improve wear protection and reduce phosphorus emissions.
1. A lubricant composition having improved wear protection and reduced phosphorous emissions comprising a major amount of a base oil and an effective amount of premixed additives comprising a ZDDP, a tetramethyl propionate polyolester and an oil soluble dimanganese organometallic compound.
2. A method of making a lubricant composition having improved antiwear properties and reduced phosphorous emissions wherein said lubricant composition comprises a major amount of a base oil and an effective amount of a ZDDP, a tetramethyl propionate polyolester and an oil soluble dimanganese organometallic compound the method comprising forming a premixed composition comprising the ZDDP, the polyol ester and said oil soluble organometallic compound; and adding the premixed composition to said base oil.
3. A method for improving wear protection and reducing phosphorous emissions in a lubricant composition comprising adding to a lubricating base oil effective amounts of premixed additives comprising ZDDP and, a tetramethyl propionate polyolester having a viscosity at 100° in the range of about 2 to about 4 cSt and an oil soluble dimanganese organometallic compound.