ANALYSIS AND EVALUATION OF INTERNAL COMBUSTION ENGINE LUBRICATING OILS AVAILABLE IN THE EGYPTIAN MARKET | ||
| Misr Journal of Agricultural Engineering | ||
| Article 1, Volume 42, Issue 3, July 2025, Pages 139-152 PDF (765.7 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/mjae.2025.392254.1157 | ||
| Authors | ||
| E. R. Elashry1; R. G. Abdel Hamied2; R. M. Youssef* 3 | ||
| 1Prof. of Farm power and tractors. Eng., Dept. of Ag. & Biosystems Eng., Fac. of Ag., EL-Shatby, Alex. U., Egypt. | ||
| 2Assist. Prof. of Farm power and machinery, Technology of Tractors and Ag. Equipment program, Fac. of Industrial and Energy Technology, Borg Al - Arab Technological U, Egypt. | ||
| 3Assist. Prof. of Farm power and machinery, Dept. of Ag. & Biosystems Eng., Fac. of Ag., EL-Shatby, Alex. U., Egypt. | ||
| Abstract | ||
| This paper presents an analytical study to evaluate the quality of most internal combustion engine oils circulating commercially in the Egyptian markets through shops and workshops for sale or oil change. This evaluation was carried out on various lubricating engine oils for local and imported brands with different viscosity grades. Fifty packages of gasoline and diesel engine lubricating oils were randomly collected from different types of local and imported engine oils. Three important physical properties of the tested oil samples, with three replicates for each sample, were measured. These measurements included kinematic viscosity (KV), flash point (FP), and pour point (PP), which directly affect engine performance and oil quality. Experimental results were compared with the requirements of standard specifications according to Egyptian, regional, and international standards to evaluate the extent of oil compliance. The results indicated that 26% of the total analyzed oil samples were found to fully match the standard specifications of all three measured properties. Among these compliant samples, 10 were imported oils out of the 31 imported samples, with a percentage of 32.25%, and six of these compliant samples were in oil grade SAE 50. None of the samples from grades 15W-40, 5W-20, and 5W-40 met all three standard specifications together. However, 56% of all oil samples conformed to two out of the three measured properties, and 18% of all samples matched only one property. None of the grade 5W-20 oil samples complied with the standard limits for kinematic viscosity. | ||
| Keywords | ||
| Lubricating engine oils; Oil performance grade; Kinematic Viscosity; Pour point; Flash point | ||
| References | ||
|
Akaninwor, G. C. and Wali, S. A. (2025) ‘Assessment and Analysis of Performance Characteristics of Selected Locally Manufactured Lubricants (Engine Oils)’, Journal of Fluid Mechanics and Mechanical Design, pp. 1–12.
ASTM D445-23 (2023) Standard Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosity), ASTM International, West Conshohocken, PA. doi: 10.1520/D0445-23.
ASTM D92-18 (2018) Standard Test Method for Flash and Fire Points by Cleveland Open Cup Tester. doi: 10.1520/D0092-18.
ASTM D97-2022 (2022) Standard Test Method for Pour Point of Petroleum Products, ASTM International, West Conshohocken, PA. doi: 10.1520/D0097-17BR22.
Dresel, W. and Heckler, R. (2017) ‘Lubricating greases’, Lubricants and Lubrication, pp. 781–842.
Elashry, E. R. (2017) ‘The Lubrication System’, in Internal Combustion Engines. Bostan Elmarafa for Publishing @ Distributing, pp. 471–511 (In Arabic).
EOS 442/2007 (2007) LUBRICATING OILS FOR INTERNAL COMBUSTION ENGINES (SAE – J 300).
Fuchs, M. (2000) ‘The world lubricants market, current situation and outlook’, in Proceedings of the 12th International Colloquium Tribology, pp. 9–22.
GSO 1785-1 (2023) GSO 1785-1:2023 Register Your Interest Gulf Technical Regulation · English · Prepared By MOIAT Lubricating Oils for Internal Combustion Engines – Part 1: API Classifications of Lubricating Oils for Gasoline and Diesel Engines.
Kobayashi, S. and Kondoh, J. (2020) ‘Feasibility study on shear horizontal surface acoustic wave sensors for engine oil evaluation’, Sensors, 20(8), p. 2184.
Nikolakopoulos, P. G., Mavroudis, S. and Zavos, A. (2018) ‘Lubrication performance of engine commercial oils with different performance levels: The effect of engine synthetic oil aging on piston ring tribology under real engine conditions’, Lubricants, 6(4), p. 90.
Parihar, N. S. and Rattan, G. (2023) ‘Viscosity Index Improvers for Engine Oils: An Overview’, International Journal of Engineering Inventions, 12(8), pp. 139–147.
Proctor, C. L. (2003) ‘Internal Combustion Engines’, in Meyers, R. A. B. T.-E. of P. S. and T. (Third E. (ed.). New York: Academic Press, pp. 33–44. doi: https://doi.org/10.1016/B0-12-227410-5/00350-1.
SAE J300_202405 (2024) ‘Engine oil viscosity classification and properties. SAE International.’ doi: https://doi.org/10.4271/J300_202405.
Sokolnikov, A. N., Bezborodov, Y. N. and Shram, V. G. (2016) ‘Apparatus for Determining of the Pour Point of Crude Oil and Petroleum Products’, Procedia Engineering, 150, pp. 486–489.
Wong, V. W. and Tung, S. C. (2016) ‘Overview of automotive engine friction and reduction trends–Effects of surface, material, and lubricant-additive technologies’, Friction, 4, pp. 1–28. | ||
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