Operating in dusty conditions such as unpaved or dusty roads
Inspect frequently, service as
required– Replace cabin air filter (if equipped).
– Replace engine air filter.
Every 5,000 miles (8,000 km)– Rotate tires, inspect tires for wear and measure tread
depth.
– Inspect the wheels and related components for
abnormal noise, wear, looseness or drag.
Every 5,000 miles (8,000 km) or
6 months– Change engine oil and replace oil filter.
– Inspect and lubricate U-joints.
Every 15,000 miles (24,000 km)– Replace fuel filter (Ranger).
Every 30,000 miles (48,000 km)– Change automatic transmission fluid (not required on
6R80 or TorqShifttransmissions).
– Replace wheel bearing grease and grease seals on 4x2
front wheel bearings (if non-sealed bearings are used).
Every 50,000 miles (80,000 km)– Change manual transmission fluid.
– Change rear axle lubricant (E-450 and F-450/550
only).
Every 60,000 miles (96,000 km)– Change transfer case fluid.
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2011 F-250/350/450/550(f23)
Owners Guide, 1st Printing
USA(fus)
Off-road operation
Inspect frequently, service as
required– Replace cabin air filter (if equipped).
– Replace engine air filter.
– Inspect and lubricate steering linkage ball joints and
U-joints (if equipped with grease fittings).
Every 5,000 miles (8,000 km) or
6 months– Change engine oil and replace oil filter.
– Rotate tires, inspect tires for wear and measure tread
depth.
– Inspect the wheels and related components for
abnormal noise, wear, looseness or drag.
Every 30,000 miles (48,000 km)– Change automatic transmission fluid (not required on
6R80 or TorqShifttransmissions).
– Replace wheel bearing grease and grease seals on 4x2
front wheel bearings (if non-sealed bearings are used).
Every 50,000 miles (80,000 km)– Change manual transmission fluid.
– Change rear axle lubricant (E-450 and F-450/550
only).
Every 60,000 miles (96,000 km)– Change transfer case fluid.
Exclusive use of E85 (Flex Fuel Vehicles only)
Every oil change– If ran exclusively on E85, fill the fuel tank full with
regular unleaded fuel.
Scheduled Maintenance Guide
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2011 F-250/350/450/550(f23)
Owners Guide, 1st Printing
USA(fus)
