What term describes the result of performing a solution wash to restore engine performance?

• A. Desalination wash
• B. Water wash
• C. Performance recovery
• D. Inlet cleaning

Answer: (C)

Deposits in the compressor reduce airflow and efficiency, so cleaning with a chemical solution targets dissolving varnish and other deposits that water alone won’t remove. After flushing these out, the compressor can breathe more freely and the engine’s performance returns toward its clean-state level. That restoration of performance is described as performance recovery. Desalination wash isn’t a standard term for this context, inlet cleaning refers to the cleaning of the inlet hardware, and a water wash is a different cleaning method, so they don’t describe the outcome as directly as performance recovery.