Ford Crown Victoria 2011 Owner's Manual page 320

Scheduled Maintenance
Crown Victoria police interceptor & taxi, and Executive Series Town Car
equipped with engine idle hour meter
Inspect frequently, service as
Every 5,000 miles (8,000 km) – Inspect brake system
Every 5,000 miles (8,000 km) or
Every 5,000 miles (8,000 km),
6 months or as indicated by
time/mileage calculation
Every 15,000 miles (24,000 km) – Replace fuel filter
Every 30,000 miles (48,000 km) – Change automatic transmission fluid (except 6R80
Every 60,000 miles (96,000 km) – Replace spark plugs
320
2011 Crown Victoria (cro)
Owners Guide, 3rd Printing
USA (fus)
– Replace cabin air filter (if equipped)
required
– Inspect wheels and related components for abnormal
noise, wear, looseness or drag
– Lubricate control arm and steering ball joints if equipped
with grease fittings
– Rotate tires, inspect tires for wear and measure tread
depth
– Inspect and lubricate U-joints
6 months
– Change engine oil and filter (see description below)
transmission)