Why are compressor washes performed on engines?

Compressor washes are performed on engines primarily to improve engine performance by removing contaminants. Over time, engine compressors can accumulate debris, dirt, and other forms of contamination, which can adversely affect airflow, pressure ratios, and overall engine efficiency. By conducting regular compressor washes, these contaminants are effectively removed, allowing for smoother airflow and optimized engine performance. This process helps maintain the engine's ability to perform at its best, ensuring that it runs efficiently and reliably during operation.

While reducing noise levels, cleaning the exterior, and increasing fuel efficiency may be associated with good maintenance practices, they are not the primary reasons for conducting compressor washes. The main focus remains on maintaining engine performance through the elimination of buildup that can hinder performance metrics.