If you're an industrial plant operator, chances are you've heard of industrial oil flushing. But what exactly is it? How does it work? And why should you consider doing it? Read on for a comprehensive guide on all things industrial oil flushing. What Is Industrial Oil Flushing?   Industrial oil flushing is an essential process used in the maintenance of industrial machines and equipment. It involves the removal of debris, sludge, contaminants and other residues from a component's oil supply system to prevent or reduce oil degradation.