Study on the formulation of transmission lubricating oil for military motor vehicles
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https://doi.org/10.54939/1859-1043.j.mst.113.2026.111-119Keywords:
Transmission oil; Base oil; Additive; Extreme pressure (EP) additive; Pour point depressant.Abstract
This paper presents the formulation and performance evaluation of a compounded transmission oil for military motor vehicles as a replacement for imported TAP-15V oil. The developed oil, formulated from selected base oils and a multifunctional additive package, satisfied all requirements of GOST 23652, with a kinematic viscosity of 14,58 mm²/s at 100 °C, a pour point of -26 °C, and a flash point of 234 °C. Four-ball tests showed improved tribological performance compared with TAP-15V oil, achieving a wear index of 720 N and a weld load of 5508 N. The results demonstrate that the formulated oil is suitable for practical application as an alternative to imported TAP-15V oil.
References
[1]. C. Kajdas, “Những kiến thức cơ sở về dầu mỡ bôi trơn”, Nhà xuất bản Khoa học và Kỹ thuật, Hà Nội, (1993). (in Vietnamese)
[2]. American Petroleum Institute (API), “API 1560: Engine Oil Licensing and Certification System – Ninth Edition (Reaffirmed)”, Washington, DC, USA, (2023).
[3]. “High-performance transmission oil with multi-functional additive system”, Chinese Patent No. CN118813315B, (2024).
[4]. Dube and M. D. Jaybhaye, “Experimental investigation of natural oils with and without additives in gear box lubrication”, AIP Conf. Proc., Vol. 2427, p. 020044, (2023). DOI: https://doi.org/10.1063/5.0100852
[5]. “Low viscosity gear oil compositions for electric and hybrid vehicles”, U.S. Patent No. US11,629,308B2, (2023).
[6]. H. Yang, S. Du, Y. Li, Y. Zhang, H. Rui and D. Zhang, “Study on the Tribological Performance of Regenerated Gear Oil with Composite Additives”, Coatings, Vol. 14, No. 12, p. 1508, (2024). DOI: https://doi.org/10.3390/coatings14121508
[7]. SAE International, “Automotive Gear Lubricant Viscosity Classification (SAE J306)”, Warrendale, PA, USA, (2015).
[8]. T. Wu, S. Fan, N. Song, C. Gao, S. Zhang and Y. Zhang, “Potential Application of Oil-Soluble LaF₃ Nanoparticles as High-Performance Gear Oil Additives”, (2025).
[9]. Y. Ma, J. Liu and L. Zheng, “The synergistic effects of EP and AW additives with oxynitrided surface of steel”, Tribol. Int., Vol. 28, No. 5, pp. 329–334, (1995). DOI: https://doi.org/10.1016/0301-679X(95)00083-G
[10]. M. N. Najman et al., “Investigating binary oil additive systems containing P and S using X-ray absorption near-edge structure spectroscopy”, Wear, Vol. 257, No. 1–2, pp. 32–40, (2004). DOI: https://doi.org/10.1016/S0043-1648(03)00537-4
[11]. Kim et al., “Properties of tribofilms formed with ashless dithiophosphate and zinc dialkyl dithiophosphate under extreme pressure conditions”, Wear, Vol. 268, No. 3–4, pp. 579–591, (2010). DOI: https://doi.org/10.1016/j.wear.2009.10.004
[12]. Y.-L. Chen et al., “New insights into the interactions between phosphorus- and sulfur-containing lubricating additives”, Tribol. Int., Vol. 211, p. 110870, (2025). DOI: https://doi.org/10.1016/j.triboint.2025.110870
[13]. H. Peng et al., “Influence of Sulfur-Phosphorus Additive Interaction Effects on the Performance of Roller Bearing Greases”, Lubricants, Vol. 13, No. 1, p. 5, (2025). DOI: https://doi.org/10.3390/lubricants13010005
[14]. T. V. Hien et al., “Development of biodegradable lubricating grease for application in specialized equipment operating under marine environmental conditions”, J. Mil. Sci. Technol., Vol. 105, pp. 67–74, (2025). DOI: https://doi.org/10.54939/1859-1043.j.mst.105.2025.67-74
[15]. V. M. Shkolnikov, “Топлива, смазочные материалы, технические жидкости. Ассортимент и применение”, (1999).
[16]. “ГОСТ 23652–2023: Масла трансмиссионные. Общие технические требования”, Федеральное агентство по техническому регулированию и метрологии (Росстандарт), Москва, (2023).
