The modification and adoption of biolubricants as alternatives in the automotive industry

Lubricants are pivotal in mitigating friction and wear between surfaces, ensuring seamless movement of solid objects. However, the predominant use of petroleum-based lubricants in the automotive and industrial ssectors raises substantial concerns for future energy security. The exploration of vegetable oils as an alternative lubricant in the automotive industry was motivated by the depletion of fossil fuels and escalating environmental concerns. The post-pandemic surge in environmental awareness has intensified the focus on biolubricants. Over the past two decades, the biolubricants field has burgeoned with numerous research, signaling a heightened interest in eco-friendly and sustainable lubrication solutions. This underscores biolubricants as a dynamic and evolving research area with lasting prominence, especially amid ongoing environmental innovation. The review centrally revolves around naturally sourced lubricants, primarily focusing on vegetable oils, which stand out as appealing substitutes for conventional petroleum-based lubricants due to their biodegradability, high lubricity, and elevated flash points. The article delves into modifications to enhance vegetable oil properties, explores the role of additives, and provides insights into current and future prospects. The paper also investigates diverse applications in engine oil, grease, hydraulic oil, and more.