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On the basis of weight in percentage, aluminium oxide nanoparticles are added to the jojoba oil. The variation of Al₂O₃ nanoparticles concentration with jojoba oil was evaluated for the tribological characteristics. The minimum friction coefficient and wear was observed at 0.1% concentration which gets further increased at 0.15% concentration and maximum wear was obtained at 0.2% concentration. The smooth surface of the pin were observed at 0.1% nanoparticles concentration with the comparison to base jojoba oil. Maximum total acid number changes were obtained at 0.2% concentration in comparison to other concentration of the nanoparticles.