1997 Ford Crown Victoria Scheduled Maintenance Guide 1st Printing - Page 17

Severe Duty Schedule NOTE: Items for Emission Control Service are shown in this type and style. For items marked with a number in parentheses such as (1), see footnote at the end of this section. NOTE: The Severe Duty Schedule provides maintenance intervals for replacing your air cleaner filter if you drive in severe dust conditions. However, the conditions you drive in may require even more frequent air cleaner replacement intervals than those shown. Check with your dealer. NOTE: Rear axle lube quantities must be replaced every 3,000 miles (5,000 km) for synthethic fluid or if the axle has been submerged in water. Otherwise, the lube should not be checked or changed unless a leak is suspected or repair required. Maintenance Intervals for Severe Duty Schedule Severe Duty Schedule 17