Maintenance is one key to diesel generator set reliability.

Diesel engines comprise most prime movers for standby power generators because of their reliability, durability, and performance under load. Diesel powered generators are depended on for backup power systems in the most critical locations: hospitals, airports, government buildings, telecommunications facilities, and even nuclear power plants. In standby power applications, diesel generators can start and assume full-rated load in less than 10 seconds, and they typically can go 30,000 hours or more between major overhauls.
Like any mechanical device, regular maintenance is critical for ensuring that a diesel powered standby generator will start and run when needed. A well-maintained generator provides consistent performance, minimizes the risk of unexpected failures, and ensures readiness during critical power needs. Neglecting maintenance can lead to engine inefficiencies, higher repair costs, and potential system failures during emergencies.