Motor oil performance-enhancing formulation
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United States of America Patent
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Jun 9, 1998
Grant Date -
N/A
app pub date -
Nov 4, 1994
filing date -
Nov 4, 1994
priority date (Note) -
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Abstract
According to the invention, combining some or all of the following components: oil soluble Molybdenum additive (Molyvan 855--Vanderbilt Chemical); ('Synthetic') polyalphaolefin (PAO) 4 cSt; PAO 6 cSt and/or synthetic diester (e.g., Chemaloy M-22A); PTFE (polytetrafluoroethylene colloidal dispersed product--Acheson Chemical) Dispersant Inhibitor (DI) package containing zinc dithiophosphate (ZDP), etc., (Chemaloy D-036); Mineral Oil Base Stock; Viscosity Index Improver (VI) (Shellvis 90-SBR); into a package for addition to conventional motor oil results in improved wear, oxidation resistance, viscosity stability, engine cleanliness, fuel economy, cold starting, and inhibited acid formation. It has been discovered that when added to the crankcase of an internal combustion, e.g., spark ignition (SI) engine at most preferably approximately 20-25 vol. % with the conventional crankcase lubricant, this provides synergistic performance improvement of the oil and engine. The formulation is compatible with engine warranty requirements, i.e.,service classification API SH.
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