Efficient anti-wear engine oil composition and preparation method thereof

Abstract

The invention discloses a high-efficiency anti-wear engine oil composition and a preparation method thereof, and relates to the technical field of engine oil. The engine oil is prepared from the following components in parts by weight: 75-85 parts of base oil, 5-8 parts of an engine oil composite additive, 4-6 parts of a dispersing agent, 0.8-1.5 parts of an antioxidant, 3-5 parts of a viscosity index improver, 0.1-0.5 part of an anti-foaming agent, 0.6-1 part of a pour point depressant, 1-3 parts of triphenyl isocyanate thiophosphate, 0.8-1.5 parts of hydroxyl fluorosilicone oil, 0.8-1.2 parts of (3, 6-diamino acridine-9-yl) boric acid, 1-3 parts of 4, 4 '-diphenyl-1, 3-pentanediol monoisobutyrate, 1-3 parts of an anti-foaming agent, 1-3 parts of a pour point depressant, 1-3 parts of triphenyl isocyanate thiophosphate, 0.1-0.5 part of an antioxidant, 1-3 parts of The invention relates to a high-performance liquid crystal display screen, which is prepared from the following components in parts by weight: 1 to 3 parts of 1, 3, 5-tris [3-(trimethoxysilyl) propyl]-1, 3, 5-triazine-2, 4, 6 (1H, 3H, 5H)-triketone, 1 to 3 parts of 2, 3, 5-triazine-2, 4, 6 (1H, 3H, 5H)-1, 3, 5-tris [3-(trimethoxysilyl) propyl]-1, 3 The engine oil composition is excellent in high-temperature oxidation resistance, good in cleaning and dispersing performance, high in wear resistance and sufficient in corrosion resistance.

Description

Technical Field

[0001] The present invention relates to the technical field of engine oil, and in particular to a high-efficiency anti-wear engine oil composition and a preparation method thereof. Background Art

[0002] Engine oil, also known as motor oil, is a lubricant used to lubricate the moving components of the engine crankcase. It can lubricate and reduce friction, assist in cooling, seal and prevent leakage, prevent rust and corrosion, and reduce shock and buffer. It is known as the "blood" of the car. Engine oil usually consists of two parts: base oil and additives. Base oil is the main component of engine oil and determines the basic properties of engine oil. Additives can make up for and improve the deficiencies in the performance of base oil and give it some new properties. They are an important part of engine oil.

[0003] Existing engine oils have more or less technical defects such as poor high temperature oxidation resistance, insufficient cleaning and dispersing performance, limited anti-wear ability, and anti-corrosion ability that needs to be further improved. In order to solve the above problems, the Chinese invention patent with authorization announcement number CN104087384B discloses a coal slurry oil fuel engine oil composition, which uses poly-internal olefins and oil-soluble polyethers as base oils and is combined with a variety of composite additives, including anti-wear agents, antioxidants and preservatives, anti-foaming agents, viscosity index improvers, metal deactivators, friction modifiers, rust inhibitors, detergents, dispersants, oiliness agents, antioxidants, and anti-wear agents. The engine oil composition of the invention has excellent cleaning and dispersing effect, preventing piston rings from sticking and keeping the engine clean; excellent viscosity-temperature characteristics, excellent base value retention, oil viscosity growth ability, can inhibit the formation of black sludge, making the engine cleaner; good high temperature oxidation stability, high shear stability, rubber compatibility, good low temperature starting performance, excellent fuel economy, no corrosion and rust on moving parts, ensuring that the oil maintains sufficient oil film strength, reducing wear and evaporation loss. However, its anti-wear ability still needs to be further improved.

[0004] Therefore, the art still needs to develop an efficient anti-wear engine oil composition with good high-temperature antioxidant performance, good cleaning and dispersing performance, high anti-wear ability, and sufficient anti-corrosion ability, and a preparation method thereof. Summary of the invention

[0005] The main purpose of the present invention is to provide a high-efficiency anti-wear engine oil composition with good high-temperature antioxidant performance, good detergency and dispersibility, high anti-wear ability and sufficient anti-corrosion ability, and a preparation method thereof.

[0006] To achieve the above purpose, the present invention provides a high-efficiency anti-wear engine oil composition, which comprises the following components in parts by weight: 75-85 parts of base oil, 5-8 parts of engine oil composite additives, 4-6 parts of dispersant, 0.8-1.5 parts of antioxidant, 3-5 parts of viscosity index improver, 0.1-0.5 parts of antifoaming agent, 0.6-1 parts of pour point depressant, 1-3 parts of triphenyl isocyanate thiophosphate, 0.8-1.5 parts of hydroxy fluorosilicone oil, 0.8-1.2 parts of (3,6-diaminoacridin-9-yl)boric acid, 1-3 parts of 4,6-hydroxy-2-cyanobenzothiazole, and 0.5-1 parts of 1,3,5-tris[3-(trimethoxysilyl)propyl]-1,3,5-triazine-2,4,6(1H,3H,5H)-trione.

[0007] Preferably, the base oil is a mixture of Class II base oil 150SN, Class II base oil 500SN, and Class III base oil 100N in a mass ratio of 7:2:1.

[0008] Preferably, the Group II base oil 150SN and Group II base oil 500SN are both from Mobil Corporation of the United States; the Group III base oil 100N is from SK Corporation of South Korea.

[0009] Preferably, the engine oil additive package is HiTEC® 9490 engine oil additive, provided by Beijing Zehua Chemical Engineering Co., Ltd.

[0010] Preferably, the dispersant is lubricating oil dispersant T154.

[0011] Preferably, the antioxidant is any one of 2,6-di-tert-butyl-4-nonylphenol, 2,6-di-tert-butyl-p-cresol, and 2,4,6-tri-tert-butylphenol.

[0012] Preferably, the viscosity index improver is Infineum energy-saving SV600 viscosity index improver.

[0013] Preferably, the antifoaming agent is T921 composite antifoaming agent.

[0014] Preferably, the pour point depressant is polymethacrylate pour point depressant VISCOPLEX 1-248, provided by Evonik Degussa.

[0015] Preferably, the hydroxyfluorosilicone oil is hydroxyfluorosilicone oil FGY403, provided by Zhejiang Hetian Chemical Co., Ltd.

[0016] Another object of the present invention is to provide a method for preparing the high-efficiency anti-wear engine oil composition, comprising the following steps: mixing the components uniformly by weight, stirring at a temperature of 60-70°C for 20-30 minutes, cooling to room temperature, and performing negative pressure degassing to obtain a high-efficiency anti-wear engine oil composition.

[0017] Preferably, the vacuum degree of the negative pressure degassing is 0.01-0.05 MPa.

[0018] Due to the application of the above technical solution, the present invention has the following beneficial effects: (1) The method for preparing the high-efficiency anti-wear engine oil composition disclosed in the present invention has a simple and easy process, low labor intensity, little impact on the environment, high preparation efficiency and finished product qualification rate, no need for special equipment, low energy consumption, suitable for continuous large-scale production, and has high promotion and application value.

[0019] (2) The high-efficiency anti-wear engine oil composition disclosed in the present invention comprises the following components in parts by weight: 75-85 parts of base oil, 5-8 parts of engine oil composite additive, 4-6 parts of dispersant, 0.8-1.5 parts of antioxidant, 3-5 parts of viscosity index improver, 0.1-0.5 parts of antifoaming agent, 0.6-1 parts of pour point depressant, 1-3 parts of triphenyl isocyanate thiophosphate, 0.8-1.5 parts of hydroxy fluorosilicone oil, 0.8-1.2 parts of (3,6-diaminoacridin-9-yl)boric acid, 1-3 parts of 4,6-hydroxy-2-cyanobenzothiazole, and 0.5-1 parts of 1,3,5-tris[3-(trimethoxysilyl)propyl]-1,3,5-triazine-2,4,6(1H,3H,5H)-trione. Through the mutual cooperation and joint action of various components, the prepared engine oil composition has excellent high-temperature antioxidant performance, good cleaning and dispersing performance, high anti-wear ability and sufficient anti-corrosion ability.

[0020] (3) The high-efficiency anti-wear engine oil composition disclosed in the present invention has excellent detergency and dispersibility, high-temperature oxidation resistance and anti-wear and friction-reducing properties through the reasonable selection of component types and dosage ratios. It can significantly reduce the friction coefficient of various friction parts of heavy-load engines under various working conditions, improve the comprehensive fuel economy of the vehicle, and have good fuel economy maintenance capabilities; it has no corrosion and rust on moving parts, can ensure that the oil maintains sufficient oil film strength, reduce wear and evaporation losses, and thus effectively protect the durability of the engine. DETAILED DESCRIPTION

[0021] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0022] Embodiment 1: A high-efficiency anti-wear engine oil composition comprises the following components in parts by weight: 85 parts of base oil, 5 parts of engine oil composite additive, 4 parts of dispersant, 0.8 parts of antioxidant, 3 parts of viscosity index improver, 0.1 parts of antifoaming agent, 0.6 parts of pour point depressant, 1 part of triphenyl isocyanate thiophosphate, 0.8 parts of hydroxy fluorosilicone oil, 0.8 parts of (3,6-diaminoacridine-9-yl)boric acid, 1 part of 4,6-hydroxy-2-cyanobenzothiazole, and 0.5 parts of 1,3,5-tris[3-(trimethoxysilyl)propyl]-1,3,5-triazine-2,4,6(1H,3H,5H)-trione.

[0023] The base oil is a mixture of Class II base oil 150SN, Class II base oil 500SN, and Class III base oil 100N in a mass ratio of 7:2:1; the Class II base oil 150SN and Class II base oil 500SN are both from Mobil Corporation of the United States; the Class III base oil 100N is from SK Corporation of South Korea.

[0024] The engine oil composite additive is HiTEC®9490 engine oil additive, provided by Beijing Zehua Chemical Engineering Co., Ltd.; the dispersant is lubricating oil dispersant T154; the antioxidant is 2,6-di-tert-butyl-4-nonylphenol; the viscosity index improver is Infineum Energy-Saving SV600 Viscosity Index Improver; the antifoaming agent is T921 composite antifoaming agent; the pour point depressant is polymethacrylate pour point depressant VISCOPLEX1-248, provided by Evonik Degussa; the hydroxyfluorosilicone oil is hydroxyfluorosilicone oil FGY403, provided by Zhejiang Hetian Chemical Co., Ltd.

[0025] A method for preparing the high-efficiency anti-wear engine oil composition comprises the following steps: uniformly mixing the components by weight, stirring at 60°C for 20 minutes, cooling to room temperature, and performing negative pressure degassing to obtain a high-efficiency anti-wear engine oil composition; the vacuum degree of the negative pressure degassing is 0.01 MPa.

[0026] Example 2: A high-efficiency anti-wear engine oil composition, comprising the following components in parts by weight: 83 parts of base oil, 6 parts of engine oil composite additives, 4.5 parts of dispersant, 1 part of antioxidant, 3.5 parts of viscosity index improver, 0.2 parts of antifoaming agent, 0.7 parts of pour point depressant, 1.5 parts of triphenyl isocyanate thiophosphate, 1 part of hydroxy fluorosilicone oil, 0.9 parts of (3,6-diaminoacridine-9-yl)boric acid, 1.5 parts of 4,6-hydroxy-2-cyanobenzothiazole, and 0.6 parts of 1,3,5-tris[3-(trimethoxysilyl)propyl]-1,3,5-triazine-2,4,6(1H,3H,5H)-trione.

[0027] The base oil is a mixture of Class II base oil 150SN, Class II base oil 500SN, and Class III base oil 100N in a mass ratio of 7:2:1; the Class II base oil 150SN and Class II base oil 500SN are both from Mobil Corporation of the United States; the Class III base oil 100N is from SK Corporation of South Korea.

[0028] The engine oil composite additive is HiTEC®9490 engine oil additive, provided by Beijing Zehua Chemical Engineering Co., Ltd.; the dispersant is lubricating oil dispersant T154; the antioxidant is 2,6-di-tert-butyl-p-cresol; the viscosity index improver is Infineum's energy-saving SV600 viscosity index improver; the antifoaming agent is T921 composite antifoaming agent; the pour point depressant is polymethacrylate pour point depressant VISCOPLEX1-248, provided by Evonik Degussa; the hydroxyfluorosilicone oil is hydroxyfluorosilicone oil FGY403, provided by Zhejiang Hetian Chemical Co., Ltd.

[0029] A method for preparing the high-efficiency anti-wear engine oil composition comprises the following steps: uniformly mixing the components by weight, stirring at 63° C. for 22 minutes, cooling to room temperature, and performing negative pressure degassing to obtain a high-efficiency anti-wear engine oil composition; the vacuum degree of the negative pressure degassing is 0.02 MPa.

[0030] Example 3: A high-efficiency anti-wear engine oil composition, comprising the following components in parts by weight: 80 parts of base oil, 6.5 parts of engine oil composite additives, 5 parts of dispersant, 1.2 parts of antioxidant, 4 parts of viscosity index improver, 0.35 parts of antifoaming agent, 0.8 parts of pour point depressant, 2 parts of triphenyl isocyanate thiophosphate, 1.2 parts of hydroxy fluorosilicone oil, 1 part of (3,6-diaminoacridine-9-yl)boric acid, 2 parts of 4,6-hydroxy-2-cyanobenzothiazole, and 0.8 parts of 1,3,5-tris[3-(trimethoxysilyl)propyl]-1,3,5-triazine-2,4,6(1H,3H,5H)-trione.

[0031] The base oil is a mixture of Class II base oil 150SN, Class II base oil 500SN, and Class III base oil 100N in a mass ratio of 7:2:1; the Class II base oil 150SN and Class II base oil 500SN are both from Mobil Corporation of the United States; the Class III base oil 100N is from SK Corporation of South Korea.

[0032] The engine oil composite additive is HiTEC®9490 engine oil additive, provided by Beijing Zehua Chemical Engineering Co., Ltd.; the dispersant is lubricating oil dispersant T154; the antioxidant is 2,4,6-tri-tert-butylphenol; the viscosity index improver is Infineum's energy-saving SV600 viscosity index improver; the antifoaming agent is T921 composite antifoaming agent; the pour point depressant is polymethacrylate pour point depressant VISCOPLEX1-248, provided by Evonik Degussa; the hydroxyfluorosilicone oil is hydroxyfluorosilicone oil FGY403, provided by Zhejiang Hetian Chemical Co., Ltd.

[0033] A method for preparing the high-efficiency anti-wear engine oil composition comprises the following steps: uniformly mixing the components by weight, stirring at 65°C for 25 minutes, cooling to room temperature, and performing negative pressure degassing to obtain a high-efficiency anti-wear engine oil composition; the vacuum degree of the negative pressure degassing is 0.03MPa.

[0034] Example 4: A high-efficiency anti-wear engine oil composition, comprising the following components in parts by weight: 78 parts of base oil, 7.5 parts of engine oil composite additives, 5.5 parts of dispersant, 1.3 parts of antioxidant, 4.5 parts of viscosity index improver, 0.4 parts of antifoaming agent, 0.9 parts of pour point depressant, 2.5 parts of triphenyl isocyanate thiophosphate, 1.3 parts of hydroxy fluorosilicone oil, 1.1 parts of (3,6-diaminoacridine-9-yl)boric acid, 2.5 parts of 4,6-hydroxy-2-cyanobenzothiazole, and 0.9 parts of 1,3,5-tris[3-(trimethoxysilyl)propyl]-1,3,5-triazine-2,4,6(1H,3H,5H)-trione.

[0035] The base oil is a mixture of Class II base oil 150SN, Class II base oil 500SN, and Class III base oil 100N in a mass ratio of 7:2:1; the Class II base oil 150SN and Class II base oil 500SN are both from Mobil Corporation of the United States; the Class III base oil 100N is from SK Corporation of South Korea.

[0036] The engine oil composite additive is HiTEC®9490 engine oil additive, provided by Beijing Zehua Chemical Engineering Co., Ltd.; the dispersant is lubricating oil dispersant T154; the antioxidant is a mixture of 2,6-di-tert-butyl-4-nonylphenol, 2,6-di-tert-butyl-p-cresol, and 2,4,6-tri-tert-butylphenol in a mass ratio of 1:2:3; the viscosity index improver is Infineum's energy-saving SV600 viscosity index improver; the antifoaming agent is T921 composite antifoaming agent; the pour point depressant is polymethacrylate pour point depressant VISCOPLEX1-248, provided by Evonik Degussa; the hydroxyfluorosilicone oil is hydroxyfluorosilicone oil FGY403, provided by Zhejiang Hetian Chemical Co., Ltd.

[0037] A method for preparing the high-efficiency anti-wear engine oil composition comprises the following steps: uniformly mixing the components by weight, stirring at 68° C. for 28 minutes, cooling to room temperature, and performing negative pressure degassing to obtain a high-efficiency anti-wear engine oil composition; the vacuum degree of the negative pressure degassing is 0.04 MPa.

[0038] Example 5: A high-efficiency anti-wear engine oil composition, comprising the following components in parts by weight: 75 parts of base oil, 8 parts of engine oil composite additives, 6 parts of dispersant, 1.5 parts of antioxidant, 5 parts of viscosity index improver, 0.5 parts of antifoaming agent, 1 part of pour point depressant, 3 parts of triphenyl isocyanate thiophosphate, 1.5 parts of hydroxy fluorosilicone oil, 1.2 parts of (3,6-diaminoacridine-9-yl)boric acid, 3 parts of 4,6-hydroxy-2-cyanobenzothiazole, and 1 part of 1,3,5-tris[3-(trimethoxysilyl)propyl]-1,3,5-triazine-2,4,6(1H,3H,5H)-trione.

[0039] The base oil is a mixture of Class II base oil 150SN, Class II base oil 500SN, and Class III base oil 100N in a mass ratio of 7:2:1; the Class II base oil 150SN and Class II base oil 500SN are both from Mobil Corporation of the United States; the Class III base oil 100N is from SK Corporation of South Korea.

[0040] The engine oil composite additive is HiTEC®9490 engine oil additive, provided by Beijing Zehua Chemical Engineering Co., Ltd.; the dispersant is lubricating oil dispersant T154; the antioxidant is 2,6-di-tert-butyl-4-nonylphenol; the viscosity index improver is Infineum Energy-Saving SV600 Viscosity Index Improver; the antifoaming agent is T921 composite antifoaming agent; the pour point depressant is polymethacrylate pour point depressant VISCOPLEX1-248, provided by Evonik Degussa; the hydroxyfluorosilicone oil is hydroxyfluorosilicone oil FGY403, provided by Zhejiang Hetian Chemical Co., Ltd.

[0041] A method for preparing the high-efficiency anti-wear engine oil composition comprises the following steps: uniformly mixing the components by weight, stirring at 70°C for 30 minutes, cooling to room temperature, and performing negative pressure degassing to obtain a high-efficiency anti-wear engine oil composition; the vacuum degree of the negative pressure degassing is 0.05MPa.

[0042] Comparative Example 1 A high-efficiency anti-wear engine oil composition and a preparation method thereof, which are substantially the same as those in Example 1, except that triphenyl isocyanate thiophosphate and hydroxy fluorosilicone oil are not added.

[0043] Comparative Example 2 A high-efficiency anti-wear engine oil composition and a preparation method thereof, which are substantially the same as those of Example 1, except that (3,6-diaminoacridine-9-yl)boric acid and 4,6-hydroxy-2-cyanobenzothiazole are not added.

[0044] In order to further illustrate the beneficial technical effects of the high-efficiency anti-wear engine oil composition involved in each embodiment of the present invention, relevant performance tests were conducted on the high-efficiency anti-wear engine oil composition involved in Examples 1-5 and Comparative Examples 1-2. The test results are shown in Table 1. The test method is as follows: (1) The high-temperature antioxidant performance was evaluated by the pressurized differential scanning calorimetry (PDSC) test, which was expressed as the oxidation induction period (in minutes) of the test sample. The temperature of the PDSC test was 220°C, the pressure was 0.5 MPa, and the oxygen flow rate was 100 mL / min. The longer the oxidation induction period, the better the high-temperature antioxidant performance of the test sample.

[0045] (2) The antioxidant performance of gasoline engine lubricating oil was evaluated by the thin layer oxygen absorption oxidation test (TFOUT), which was expressed as the oxidation induction period (in minutes) of the test sample. The temperature of the TFOUT test was 160°C, IIIE catalyst was used, and the oxygen pressure was 620 kPa. The longer the oxidation induction period, the better the antioxidant performance of the test sample.

[0046] (3) The engine crankcase coking simulation test is used to test the detergency. This method is to add 300 ml of the test sample into the coking plate simulator, heat it to 150°C, and continuously splash oil onto an aluminum plate at a temperature of 310°C. After 6 hours, the amount of coke generated on the aluminum plate is weighed and expressed as the amount of deposit (in mg) to simulate the deposit on the piston. The higher the coking amount, the worse the detergency of the test sample.

[0047] (4) A high-frequency reciprocating friction tester was used to conduct a high-temperature wear test. The test conditions were: load 1000g, frequency 20Hz, temperature 100℃, and test time 60min. The smaller the wear spot diameter, the lower the friction coefficient, indicating that the anti-friction and anti-wear performance of the test sample is better.

[0048] (5) The BRT ball rust test was conducted with reference to SH-T 0763-2005. The engine oil composition prepared in each example was used as the test sample. During the entire 18-hour bench test, the metal ball protected by the test sample was continuously exposed to the acidic liquid and air. After the test, the intensity of the metal ball reflection surface was measured to obtain a gray test value, which was used to determine the corrosion area and thus evaluate the anti-rust ability of the test sample. The injection rate of the acetic acid / hydrobromic acid / hydrochloric acid / deionized water solution was 0.19 ml / hour, the air flow was 40 ml / minute, and the oil temperature was 48°C. The higher the score result, the better the anti-rust performance of the test sample.

[0049] Table 1

[0050] As can be seen from Table 1, the high-efficiency anti-wear engine oil composition disclosed in the embodiment of the present invention has better high-temperature antioxidant performance, better detergency and dispersibility, higher anti-wear ability and more excellent anti-corrosion ability than the comparative example product; the combined use of triphenyl isocyanate thiophosphate, hydroxy fluorosilicone oil, (3,6-diaminoacridine-9-yl)boric acid and 4,6-hydroxy-2-cyanobenzothiazole is beneficial to improving the above performance.

[0051] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A high-efficiency anti-wear engine oil composition, characterized in that: The invention comprises the following components in parts by weight: 75-85 parts of base oil, 5-8 parts of engine oil composite additive, 4-6 parts of dispersant, 0.8-1.5 parts of antioxidant, 3-5 parts of viscosity index improver, 0.1-0.5 parts of antifoaming agent, 0.6-1 parts of pour point depressant, 1-3 parts of triphenyl isocyanate thiophosphate, 0.8-1.5 parts of hydroxy fluorosilicone oil, 0.8-1.2 parts of (3,6-diaminoacridine-9-yl)boric acid, 1-3 parts of 4,6-hydroxy-2-cyanobenzothiazole and 0.5-1 parts of 1,3,5-tris[3-(trimethoxysilyl)propyl]-1,3,5-triazine-2,4,6(1H,3H,5H)-trione.

2. The high-efficiency anti-wear engine oil composition according to claim 1, characterized in that: The base oil is prepared by mixing class II base oil 150SN, class II base oil 500SN and class III base oil 100N in a mass ratio of 7:2:

1.

3. The high-efficiency anti-wear engine oil composition according to claim 1, characterized in that: The engine oil compound additive is HiTEC®9490 engine oil additive; the dispersant is lubricating oil dispersant T154.

4. The high-efficiency anti-wear engine oil composition according to claim 1, characterized in that: The antioxidant is any one of 2,6-di-tert-butyl-4-nonylphenol, 2,6-di-tert-butyl-p-cresol and 2,4,6-tri-tert-butylphenol.

5. The high-efficiency anti-wear engine oil composition according to claim 1, characterized in that: The viscosity index improver is Infineum energy-saving SV600 viscosity index improver.

6. The high-efficiency anti-wear engine oil composition according to claim 1, characterized in that: The antifoaming agent is T921 composite antifoaming agent.

7. The high-efficiency anti-wear engine oil composition according to claim 1, characterized in that: The pour point depressant is polymethacrylate pour point depressant VISCOPLEX 1-248.

8. The high-efficiency anti-wear engine oil composition according to claim 1, characterized in that: The hydroxy fluorosilicone oil is hydroxy fluorosilicone oil FGY403.

9. A method for preparing the high-efficiency anti-wear engine oil composition according to any one of claims 1 to 8, characterized in that: The method comprises the following steps: uniformly mixing the components by weight, stirring at 60-70°C for 20-30 minutes, cooling to room temperature, and performing negative pressure degassing to obtain a high-efficiency anti-wear engine oil composition.

10. The method for preparing the high-efficiency anti-wear engine oil composition according to claim 9, characterized in that: The vacuum degree of the negative pressure degassing is 0.01-0.05MPa.

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