The Extended Maintenance Fuel Filter was introduced in 2001 as part of the highly efficient and improved retrofit package series. This retrofit package includes oil filters, fuel filters and air filters, and reduces the need for scheduled maintenance throughout the year by about 50%. This saves on operating costs, and total lifetime maintenance costs can be cut up to 45%. Additionally, spillage and clean up costs can be reduced and overall engine life expanded. The fuel filter has an expected operating life of 3,000 hours.