Lubricating fluids with enhanced energy efficiency and durability
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United States of America Patent
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Sep 8, 2009
Grant Date -
Mar 17, 2005
app pub date -
Sep 10, 2004
filing date -
Sep 13, 2003
priority date (Note) -
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Abstract
The present invention comprises novel lubricating compositions, automotive gear lubricating compositions, and fluids useful in the preparation of finished automotive gear lubricants and finished gear oils, and methods of preparation thereof. One embodiment of the present invention comprises a lubricating composition comprising a blend of a PAO having a viscosity of greater than or equal to about 40 cSt. at 100° C. and less than or equal to about 1,000 cSt. at 100° C. and an ester having a viscosity of less than or equal to about 2.0 cSt. at 100° C., wherein said blend of said PAO and said ester has a viscosity index greater than or equal to the viscosity index of the PAO.
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