Engine oil for bus fleets is designed to meet the rigorous demands of commercial passenger transport. Its formulation provides excellent wear protection, thermal stability, and oxidation resistance, supporting engines that operate continuously over long routes. Transit authorities, bus operators, and OEMs benefit from bulk procurement, securing cost-effective supply while simplifying logistics and inventory management. Using high-performance engine oil helps prevent sludge and deposits, extending engine life, reducing downtime, and maintaining fuel efficiency. Bulk sourcing allows fleet managers to implement uniform lubrication practices across all vehicles, ensuring consistent engine performance and compliance with OEM specifications. This is particularly important for large-scale transit operations that require reliable, continuous service.