Release additive composition for oil filter system

Abstract

A slow release liquid additive concentrate for use in an engine oil filter and a method for extending an oil drain interval for an engine. The additive concentrate has therein at least one detergent and at least one antioxidant. The additive concentrate has a tan delta of greater than about 5.

Description

DESCRIPTION OF THE DISCLOSURE[0001]1. Technical Field[0002]The present disclosure is directed to a release additive liquid concentrate and methods for use thereof in an oil filter system. More particularly, this disclosure is directed to a method for extending an oil drain interval of an engine having an oil filter including a release additive including at least one detergent; and at least one antioxidant.[0003]2. Background and Summary[0004]During the combustion process in internal combustion engines, mineral and organic acidic by-products are produced. Concurrently, other acidic products may be generated by the degradation of lubricants used in internal combustion engines. Such by-products may lead to the formation of high temperature deposits, low temperature sludge formation and corrosion of various engine parts which ultimately may lead to increased wear of lubricated engine components. Basic substances are typically included in lubricants to neutralize the acidic products in o...

AI Technical Summary

Benefits of technology

[0004]During the combustion process in internal combustion engines, mineral and organic acidic by-products are produced. Concurrently, other acidic products may be generated by the degradation of lubricants used in internal combustion engines. Such by-products may lead to the formation of high temperature deposits, low temperature sludge formation and corrosion of various engine parts which ultimately may lead to increased wear of lubricated engine components. Basic substances are typically included in lubricants to neutralize the acidic products in order to break the cycle of sludge and high temperature deposit formation and accelerated wear of engine parts.

[0005]However, the ability to retain the basicity of the lubricant composition throughout its useful life is a problem. Failure to maintain an oil's basicity may dramatically increase a vehicle's downtime, for example by requiring more frequent oil changes than the recommended oil change interval, or dramatically shorten an engine's life.

[0006]Accordingly, an ability to retain the basicity in a lubricant composition over an extended period of time may, for example, dramatically reduce the risk of sludge and high temperature deposit formation and corrosion plus reduce maintenance time and extend engine life.

Problems solved by technology

Such by-products may lead to the formation of high temperature deposits, low temperature sludge formation and corrosion of various engine parts which ultimately may lead to increased wear of lubricated engine components.

However, the ability to retain the basicity of the lubricant composition throughout its useful life is a problem.

Failure to maintain an oil's basicity may dramatically increase a vehicle's downtime, for example by requiring more frequent oil changes than the recommended oil change interval, or dramatically shorten an engine's life.