Engine oil of long-service life gasoline engine

Abstract

The invention provides engine oil of a long-service life gasoline engine, which comprises basic oil and additives, wherein the additives comprise the following ingredients in percentage by weight: 4.0 percent to 6.0 percent of dispersing agents, 2.5 percent to 4.5 percent of detergent additives, 0.2 percent to 0.8 percent of corrosion inhibitors, 0.1 percent to 0.2 percent of antioxidizers, 0.01 percent to 0.15 percent of nanometer copper wear resistance agents, 5.0 percent to 9.0 percent of viscosity index improving agents, 0.3 percent to 0.5 percent of pour point reducers and the balance ofbasic oil, wherein the basic oil is semisynthesis composite basic oil consisting of API type III basic oil accounting for 40 percent to 65 percent of the mass percentage of the basic oil and 35 percent to 60 percent of poly-alpha olefin synthesis oil. The engine oil can meet the requirements of high-temperature high-speed automobile and motorcycle engines, and can ensure that the engines are always in a good lubricating state, in addition, the service life is long, and the cost is low.

Description

technical field

[0001] The invention relates to the field of engine lubricating oil, in particular to a gasoline engine oil. Background technique

[0002] The main function of lubricating oil in machinery is to reduce friction and slow down wear, so as to ensure the effective and long-term operation of the machinery. The second is cooling. Work within a certain temperature range to prevent damage to parts due to rising temperature; in addition, it has protective, sealing and cleaning functions. The protective effect is to prevent the metal from being corroded by air and other chemical gases. The sealing effect refers to the lubricating oil used in the internal combustion engine, which can prevent the gas in the combustion chamber from entering the crankcase through the gap between the cylinder wall and the piston. The cleaning effect is that in the circulating lubrication system, the lubricating oil can wash away some wear debris and other pollutants between the friction s...

Examples

Embodiment 1

[0039] The weight percentage composition of additive is:

[0040] 3% bis-polyisobutylene succinimide, 2% monosuccinimide, 2% synthetic calcium sulfonate with a base value of 300mgKOH / g, 1% sulfurized alkyl with a base value of 200mgKOH / g Calcium phenate, 0.5% zinc dialkyldithiophosphate, 0.1% zinc dialkyldithiocarbamate, 0.1% alkylphenol, 0.08% copper nanoparticles with a particle size of 15nm to 25nm, 4.0 % of ethylene-propylene copolymer with a molecular weight of 60,000, 4.0% of a hydrogenated styrene diene copolymer with a molecular weight of 80,000, and 0.3% of polyalphaolefin;

[0041] 83% base oil, the base oil is composed of 45% API Group III base oil and 55% polyalphaolefin synthetic oil.

Embodiment 2

[0043] The weight percentage composition of additive is:

[0044] 5% bispolyisobutylene succinimide, 4.5% synthetic magnesium sulfonate with a base value of 300mgKOH / g, 0.3% zinc dialkyldithiophosphate, 0.4% dialkyldithiocarbamate Zinc, 0.2% of alkylphenol, 0.1% of nano-copper particles with a particle size of 15nm to 25nm, 9.0% of hydrogenated styrene diene copolymer with a molecular weight of 80,000, and 0.5% of polymethacrylate;

[0045] 80% base oil, the base oil is composed of 40% API Group III base oil and 60% polyalphaolefin synthetic oil.

Embodiment 3

[0047] The weight percentage composition of additive is:

[0048] 3.5% T-155 polyisobutylene succinimide, 1.5% monosuccinimide, 4% sulfurized calcium alkylphenate with a base value of 250mgKOH / g, 0.5% dialkyldithio Zinc carbamate, 0.15% alkylphenol, 0.15% nano-copper particles with a particle size of 15nm to 25nm, 3.0% ethylene-propylene copolymer with a molecular weight of 50,000, and 3.0% hydrogenated styrene diene with a molecular weight of 60,000 Copolymer, 0.4% polyalphaolefin;

[0049] 83.8% base oil, the base oil is composed of 60% API III base oil and 40% polyalphaolefin synthetic oil.

technical field

[0001] The invention relates to the field of engine lubricating oil, in particular to a gasoline engine oil. Background technique

[0002] The main function of lubricating oil in machinery is to reduce friction and slow down wear, so as to ensure the effective and long-term operation of the machinery. The second is cooling. Work within a certain temperature range to prevent damage to parts due to rising temperature; in addition, it has protective, sealing and cleaning functions. The protective effect is to prevent the metal from being corroded by air and other chemical gases. The sealing effect refers to the lubricating oil used in the internal combustion engine, which can prevent the gas in the combustion chamber from entering the crankcase through the gap between the cylinder wall and the piston. The cleaning effect is that in the circulating lubrication system, the lubricating oil can wash away some wear debris and other pollutants between the friction s...

Examples

Embodiment 1

[0039] The weight percentage composition of additive is:

[0040] 3% bis-polyisobutylene succinimide, 2% monosuccinimide, 2% synthetic calcium sulfonate with a base value of 300mgKOH / g, 1% sulfurized alkyl with a base value of 200mgKOH / g Calcium phenate, 0.5% zinc dialkyldithiophosphate, 0.1% zinc dialkyldithiocarbamate, 0.1% alkylphenol, 0.08% copper nanoparticles with a particle size of 15nm to 25nm, 4.0 % of ethylene-propylene copolymer with a molecular weight of 60,000, 4.0% of a hydrogenated styrene diene copolymer with a molecular weight of 80,000, and 0.3% of polyalphaolefin;

[0041] 83% base oil, the base oil is composed of 45% API Group III base oil and 55% polyalphaolefin synthetic oil.

Embodiment 2

[0043] The weight percentage composition of additive is:

[0044] 5% bispolyisobutylene succinimide, 4.5% synthetic magnesium sulfonate with a base value of 300mgKOH / g, 0.3% zinc dialkyldithiophosphate, 0.4% dialkyldithiocarbamate Zinc, 0.2% of alkylphenol, 0.1% of nano-copper particles with a particle size of 15nm to 25nm, 9.0% of hydrogenated styrene diene copolymer with a molecular weight of 80,000, and 0.5% of polymethacrylate;

[0045] 80% base oil, the base oil is composed of 40% API Group III base oil and 60% polyalphaolefin synthetic oil.

Embodiment 3

[0047] The weight percentage composition of additive is:

[0048] 3.5% T-155 polyisobutylene succinimide, 1.5% monosuccinimide, 4% sulfurized calcium alkylphenate with a base value of 250mgKOH / g, 0.5% dialkyldithio Zinc carbamate, 0.15% alkylphenol, 0.15% nano-copper particles with a particle size of 15nm to 25nm, 3.0% ethylene-propylene copolymer with a molecular weight of 50,000, and 3.0% hydrogenated styrene diene with a molecular weight of 60,000 Copolymer, 0.4% polyalphaolefin;

[0049] 83.8% base oil, the base oil is composed of 60% API III base oil and 40% polyalphaolefin synthetic oil.

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