Anybody who has been in the lubrication field for at least a couple of years has likely been badgered by problems relating to air contamination. Indeed, aeration and foam present many serious reliability concerns which merit immediate attention by machinery maintainers. However, for most people, the causes are too complex to troubleshoot, leaving the root-cause mystery unsolved. Sometimes an oil change provides a suitable remedy, but too often it serves as only a temporary fix. In other words, there is a need to find why it happened.
