Ford 2011 Crown Victoria Owner's Manual page 318

Scheduled Maintenance Guide
Extensive idling and/or low-speed driving for long distances as in heavy
commercial use such as delivery, taxi, patrol car or livery
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 200 hours of engine
Every 15,000 miles (24,000 km) – Replace fuel filter (Crown Victoria, Grand Marquis and
Every 30,000 miles (48,000 km) – Change automatic transmission fluid (except 6R80
Every 60,000 miles (96,000 km) – Replace spark plugs
318
2011 Crown Victoria (cro)
Owners Guide, 2nd Printing
USA (fus)
– Replace cabin air filter (if equipped)
required
– Replace engine air filter
– 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
operation
Town Car)
transmission)