The process of operating a new or rebuilt engine under controlled conditions during its initial hours of operation, using specially formulated lubricants, is critical for long-term performance. This meticulous procedure allows mating surfaces to wear in smoothly, optimizing tolerances and minimizing friction. For example, specific formulations might include additives designed to facilitate this controlled wear process while protecting against premature damage.
This controlled initial operation yields significant advantages, including improved engine longevity, reduced oil consumption, and enhanced power output. Historically, this practice has evolved alongside engine technology, adapting to increasingly stringent performance demands and tighter tolerances within modern engines. This evolution reflects a growing understanding of tribology and the critical role of lubrication in mechanical systems.