Dispersant viscosity index improver for enhanced wear protection of engine oils
A technology of engine oil and dispersant, applied in the directions of additives, petroleum industry, lubrication indicating device, etc., can solve problems such as poor fuel economy and achieve the effect of improving performance
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[0300] The following examples are illustrative and not limiting of the methods and compositions of the present disclosure. In the following examples, the effect of incorporating a dispersant viscosity index improver (DVII) in an engine oil composition on soot treatment, wear protection and sludge treatment was determined. The DVII used in these examples is an amine functionalized olefin copolymer dispersant viscosity index improver comprising the reaction product of an acylated ethylene-propylene copolymer and a polyamine compound as described herein.
[0301] Table 3 summarizes the components used in Examples 1-6.
[0302] table 3
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[0304]
[0305] The engine oils of Examples 1-6 were tested using the OM646LA wear test to evaluate wear protection in the engine.
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