The operating instructions outlined in this manual have been from a comprehensive evaluation of the engine performance in relation to its installation in an aircraft. Recommendations, cautions, and warnings regarding the operation of this engine are not intended to impose undue restrictions on the operation of the plane. Still, they are inserted to enable the pilot to obtain maximum performance from the engine commensurate with safety and efficiency. Abuse, misuse, or neglect of any piece of equipment can cause eventual failure. In the case of an aircraft engine, it should be obvious that a failure may have disastrous consequences. Failure to observe the instructions contained in this manual constitutes unauthorized operation in areas unexplored during the development of the engine, or in areas in which experience has proved to be undesirable or detrimental.