Several academics have recently shown an interest in diathermal oils due to their various and crucial industrial applications. The goal of this research is to investigate the heat transfer capabilities of a specific diathermal oil known as Engine oil in conjunction with a hybrid nanofluid. The hybridization procedure for creating the desired hybrid nanofluid involves the use of Zinc oxide \(\left( {ZnO} \right)\) and Molybdenum disulfide \(\left( {MoS2} \right)\) nanoparticles. In order to achieve this objective, the modelled governing expressions are changed into dimensionless ordinary differential equations (ODEs) via well-established similarity alterations. The numerical outcome of the present investigation is analysed using Keller Box technique to determine its objective. This technique is compared using tabular data. An analysis is conducted on the influence of physical factors, including the magnetic field parameter, Williamson fluid variable \(We\) , Biot number \(Bi\) , and Prandtl number Pr. This analysis is done using tables and graphs. An increase in the intensity of the \(M, \lambda\) and \(We\) leads to a diminution in velocity. Nevertheless, an intensification in temperature is seen when \(\varphi_{2}\) and \(R\) reach greater values. The current investigation exhibits a noteworthy concurrence with the previously reported data, thereby affirming the utilisation and verification of the Keller-Box mechanism.
