Desired engine operation can be referred to in several different ways. One synonym for this term is "ideal performance," which describes the exact level of functionality that an engine should be operating at. Another term that can be used is "optimal functioning," which suggests that the engine is operating at its absolute best. "Desired power output" is another way to refer to this concept, as it implies the specific amount of power that is needed from the engine in order to achieve the desired outcome. Finally, "preferred engine operation" may also be used to describe the level of functionality that is sought after by those working with the engine.