Caracterización técnica de aceites de motor en la flota de la EMAC EP para establecer una línea base de calidad del lubricante

Abstract

This study aimed to technically characterize the engine oils used in the EMAC EP vehicle fleet in order to establish a lubricant quality baseline prior to operational use. SAE 15W-40 oil samples in both storage and in-service conditions were analyzed using physicochemical techniques such as FTIR, kinematic viscosity, Total Acid Number (TAN), Total Base Number (TBN), water content, and particle count. The results showed stability in the stored oil and moderate degradation in the in-service oil, associated with oxidation and additive depletion. Based on these findings, reference ranges were defined to evaluate lubricant condition and strengthen predictive maintenance of the fleet