In the coming decades, the automotive industry will undergo significant transformation, driven by the rapid proliferation of electric mobility solutions, including hybrid and electric vehicles. These innovative transportation systems introduce unique challenges pertaining to lubrication and cooling due to their unconventional design. Notably, hybrid vehicle heat engines operate within a lower temperature spectrum compared to traditional combustion engines. This variance poses distinct hurdles for engine oils, which are traditionally engineered for sustained operation at higher temperatures with minimal temperature fluctuations. This article conducts a comparative analysis of lubricant specifications tailored to internal combustion engines and transmission oils specifically designed for hybrid vehicles. The aim is to underscore the distinctive characteristics of these lubricants and emphasize their critical role in ensuring the efficient operation of the engine.