Two GE Frame 9FA gas turbines were suffering unacceptable failure levels. Despite introducing secondary cleaning systems, poor system cleanliness lead to extremely high levels of total insolubles in the oil used to lubricate the Moog servo control valves. Frequent trips resulted in unplanned downtime, trading penalties and a loss of production.
Castrol Perfecto XPG was installed, and demonstrated an immediate and substantial reduction in total insolubles in the system. The improvement in system cleanliness eliminated the varnishing problems and led to a dramatic and sustained improvement in reliability and availability.