Ford Crown Victoria 2011 Owner's Manual page 322

Scheduled Maintenance
Operating in dusty conditions such as unpaved or dusty roads
Inspect frequently, service as
Every 5,000 miles (8,000 km) – Inspect wheels and related components for abnormal
Every 5,000 miles (8,000 km) or
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 50,000 miles (80,000 km) – Change manual transmission fluid
Exclusive use of E85 (Flex Fuel Vehicles only)
Every oil change interval – If ran exclusively on E85, fill the fuel tank full with
322
2011 Crown Victoria (cro)
Owners Guide, 3rd Printing
USA (fus)
– Replace cabin air filter (if equipped)
required
– Replace engine air filter
noise, wear, looseness or drag
– Rotate tires, inspect tires for wear and measure tread
depth
– Change engine oil and filter
6 months
– Inspect and lubricate U-joints
Town Car)
transmission)
regular unleaded fuel