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A technology of lubricating oil composition and diesel engine, which is applied in the direction of lubricating composition and petroleum industry, which can solve the problems of few, expensive, and single efficacy, and achieve the effects of reducing operating temperature, improving high-temperature performance, and reducing friction
Inactive Publication Date: 2017-11-17
山西潞安太行润滑科技股份有限公司
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Problems solved by technology
[0004] There are not many high-quality low-sulfur, low-ash high-quality antioxidants and anti-wear and friction reducers currently on the market that have
Method used
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[0021] Example 1:
[0022] A lubricating oil composition for diesel engines, each component and corresponding weight percentage are as follows:
[0025] A lubricating oil composition for diesel engines, each component and corresponding weight percentage are as follows:
[0026] Ester type hindered phenol BHC 0.5%, 2,6-di-tert-butyl sulfur-containing bisphenol 0.2%, 2,6-di-tert-butyl-p-cresol 0.4%, dialkylated diphenylamine 0.6%, octyl diphenylamine 0.3%, methylene bis-dibutyl dithiocarbamate 0.5%, organic borate 0.6%, molybdenum amine complex 0.8, compounding agent 8.1%, 4cst API III base oil 50%, Mobil ( A51) Ester oil 38%.
Example Embodiment
[0027] Example 3:
[0028] A lubricating oil composition for diesel engines, each component and corresponding weight percentage are as follows:
[0029] Ester type hindered phenol BHC 0.6%, 2,6-di-tert-butyl-p-cresol 0.6%, dialkylated diphenylamine 0.4%, octyl diphenylamine 1.2%, methylene bis-dibutyl dithiocarbamate Acid ester 0.9%, nano copper antiwear agent 0.7%, molybdenum amine complex 0.4%, compounding agent 8.2%, 4cst API III base oil 50.0%, Mobil (A51) ester oil 37.0%.
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Abstract
The invention relates to a lubricating oil composition for diesel engines, belonging to the technical field of addition of lubricating oil. The invention aims to provide a long-oil-change-period low-emission lubricating oil composition for diesel engines. In order to solve the technical problem, the technical scheme is as follows: the lubricating oil composition for diesel engines comprises the following components in percentage by weight: 0.4-2.5% of hindered phenol antioxidant, 0.9-2.0% of amine antioxidant, 0.8-3.0% of antioxygen anti-friction multifunctional additive, 0.2-1.5% of metal anti-friction agent, 4.0-15.0% of complexing agent and the balance of base oil. The lubricating oil composition for diesel engines has the advantages of long oil change period, low volatility and excellent stability, and can be widely used in the field of diesel engine lubrication.
Description
technical field [0001] The invention relates to a lubricating oil composition for a diesel engine, in particular to a lubricating oil composition for a long oil change period and low emission diesel engine, and belongs to the technical field of lubricating oil additives. Background technique [0002] Energy saving, environmental protection emission and extended oil change period are the three major driving forces to promote the rapid development of the automobile industry and internal combustion engine oil. The application of new technologies in automobile engines puts forward more and more stringent requirements for lubricating oil formulations: (1) The improvement of environmental protection requirements , The enhancement of energy conservation awareness requires high-quality low-sulfur, low-ash lubricating oil products. (2) The increasing demand for energy-saving engine oil has prompted the development of lubricating oil in the direction of high viscosity index and low vi...
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