Amoco Corporation

Standard Oil Company (indiana)

Luke A Schaap

John H Udelhofen

Samuel W Harris

Elaine M Quinga

An engine and lubricating oil having superior anti-wear properties without necessitating use of phosphorus-containing anti-wear additives is provided which is particularly useful in automotive, industrial, and gear lubricants. The anti-wear engine and lubricating oil comprises an anti-wear component including benzotriazole or the reaction product of benoztriazole, combined with a formaldehyde-containing component and at least one primary or secondary aliphatic amine, a sulfur-containg compound, a metallic component, and a lubricating base oil.

Anti-wear engine and lubricating oil

An improved low viscosity (i.e.) 5 W to 71/2 W engine oil resistant to oxidation and consumption comprising a major portion of a lubricating oil stock, a sulfurized oil, a dispersant, an anti-corrosion agent, an anti-rust agent, a detergent, an anti-oxidant, and a viscosity index improver.

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South Holland, IL, United States of America

Luke A Schaap