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Engine oil composition for improving oil loss or engine oil combustion of German automobiles

A technology of engine oil and composition, applied in the direction of lubricating composition, petroleum industry, etc., can solve the problems of increased maintenance cost, poor thermal stability, volatilization of carbon chain oil, etc. properties, and the effect of increasing the viscosity index

Active Publication Date: 2011-08-03
大庆劳特润滑油有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such engine oils are generally formulated from eight-carbon poly-alpha-olefins or ten-carbon poly-alpha-olefins, which have short carbon chains and relatively poor thermal stability , in a high-temperature environment, the carbon chain is prone to cracking, causing the oil to volatilize, and the driver still needs to add extra oil, which is not only troublesome, but also increases maintenance costs for the driver due to the high price of PAO synthetic base oil

Method used

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  • Engine oil composition for improving oil loss or engine oil combustion of German automobiles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] 76.7kg American Chevron Phillips company produced, model is the synthetic base oil of PAO5 and PAO7; 2kg Dow Corning Company produced, model is TMTC trimethylolpropane octanoic acid / capric acid complex ester base oil; 0.2kg 8.6 kg of SV261 viscosity index improver produced by Infineum and 12.5 kg of car synthetic oil of H953 produced by Afton Corporation of the United States Composite additives are blended to obtain an engine oil composition with a viscosity grade of SAE5W / 40.

[0041] A performance test was performed on the engine oil composition, and the results are shown in Table 1. Table 1 shows the performance test results of the engine oil composition provided by the examples and comparative examples of the present invention.

Embodiment 2

[0043] 73.4kg of synthetic base oils produced by Chevron Phillips of the United States, whose models are PAO5 and PAO7; 5kg of Synesstic AN5 alkylnaphthyl ester base oils produced by ExxonMobil of the United States; 8.9kg of SV261 viscosity index improver produced by Infineum Co., Ltd. and 12.5kg of car synthetic oil produced by Afton Corporation of the United States with the brand name of H953. The additives are blended to obtain an engine oil composition with a viscosity grade of SAE5W / 40.

[0044] A performance test was performed on the engine oil composition, and the results are shown in Table 1. Table 1 shows the performance test results of the engine oil composition provided by the examples and comparative examples of the present invention.

Embodiment 3

[0046] 68.5kg of synthetic base oils produced by Chevron Phillips of the United States, models PAO5 and PAO7; 10kg of polyol ester base oils of PRI ECO 3000 produced by Shanghai Daopu; 0.3kg of Infineum produced, The brand is the fumarate lipid depressant of V385; the viscosity index improver of SV251 produced by 8.7kg Infineum Co., Ltd. and 12.5kg of Afton Company’s production, the car synthetic oil composite additive of the brand H953 is blended to obtain the viscosity Engine oil composition of grade SAE5W / 40.

[0047] A performance test was performed on the engine oil composition, and the results are shown in Table 1. Table 1 shows the performance test results of the engine oil composition provided by the examples and comparative examples of the present invention.

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Abstract

The invention provides an engine oil composition for improving oil loss or engine oil combustion of German automobiles. The engine oil composition comprises 63 to 78 weight percent of dodecyl carbon poly alpha-olefin base oil, 2 to 15 weight percent of ester base oil, 0.1 to 0.3 weight percent of pour point depressant, 8 to 10 percent of viscosity index improver and 10 to 13 weight percent of synthetic oil composite additive. The engine oil composition provided by the invention has low Noah gram value and low consumption in use, is not easy to produce 'engine oil combustion', reduces the adding times of engine oil, and reduces the maintenance expense at the same time of bring convenience to a driver. Proved by experiments, the Noah gram value of the engine oil composition is less than 4; and when the engine oil composition is used for an Audi series automobile with serious 'engine oil combustion', the engine oil is kept above the middle line by examination with an engine oil scale after the automobile runs for 5,000 kilograms.

Description

technical field [0001] The invention belongs to the technical field of synthetic lubricating oil, and in particular relates to an engine oil composition used for improving the oil loss or engine oil burning phenomenon of German automobiles. Background technique [0002] Engine oil is known as the "blood" of the car. It can lubricate, clean, cool, seal, and reduce wear on the engine, reducing the wear of engine parts and prolonging its service life. Engine oils are formulated by adding additives to base oils, which are important components that determine the performance of engine oils. [0003] Generally, base oil is divided into mineral oil and synthetic oil. Mineral oil is obtained from crude oil through physical methods, and its refining is relatively simple, which can meet the performance requirements of most engines. Synthetic oil is obtained by chemical synthesis or refining. It has the advantages of good viscosity-temperature performance, strong oxidation resistance, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N40/25
Inventor 孙学友
Owner 大庆劳特润滑油有限公司
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