Service Intervals & Specifications

REPLACEMENT INTERVALS

Component

⁽¹⁾ Interval - Miles (Normal Schedule)

Interval - Miles (Special Operating Conditions)

Gasoline & 7.3L Diesel Engines

Accessory Drive Belt

⁽²⁾

⁽³⁾

Air Filter

30,000

⁽³⁾

Cabin Air Filter

15,000

⁽³⁾

Coolant

⁽⁴⁾⁽⁵⁾

⁽³⁾

Front Axle Fluid (4WD)

150,000

⁽³⁾

Front Wheel Bearings

2WD

60,000

30,000

4WD

⁽⁶⁾

⁽⁷⁾

Fuel Filter

30,000

15,000

NGV Coalescer/Fuel Filter

⁽⁸⁾

NGV Fuel Tanks

⁽⁹⁾

Oil & Filter

5,000

3,000

PCV Valve

⁽¹⁰⁾

⁽³⁾

Rear Axle Fluid

150,000

⁽¹¹⁾

Spark Plugs

100,000

60,000

Supercharger

⁽¹²⁾

Transfer Case Fluid

150,000

60,000

A/T Fluid

⁽¹³⁾

30,000

M/T Fluid

60,000

⁽³⁾

6.0L Diesel Engine

Accessory Drive Belt

150,000

Air Filter

30,000

⁽¹⁴⁾

Cabin Air Filter

15,000

Coolant ⁽⁵⁾

75,000

Front Axle Fluid (4WD)

150,000

⁽³⁾

Front Wheel Bearings

2WD

150,000

90,000

4WD

⁽⁶⁾

⁽⁷⁾

Fuel Filter

15,000

Oil & Filter

7,500

5,000

Rear Axle Fluid ⁽¹⁵⁾

97,500

100,000

Transfer Case Fluid

150,000

120,000

A/T Fluid

60,000

30,000

M/T Fluid

60,000

⁽¹⁾	Applies to vehicles used for towing a trailer, using a camper, or car-top carrier, operated in dusty conditions, off-road operation or with extensive idling and/or low-speed driving for long distances. As in heavy commercial use such as taxi, patrol car or delivery.

⁽²⁾	Replace at 150,000 miles if not replaced within last 100,000 miles.

⁽³⁾	If vehicle is driven in dusty conditions or used under special operating conditions, inspect and replace as required.

⁽⁴⁾	Green engine coolant replaced at 45,000 miles, and then every 30,000 miles thereafter.

⁽⁵⁾	Yellow engine coolant replaced at 5 years or 100,000 miles (which ever comes first). After initial change, replace Yellow coolant every 3 years or 50,000 miles.

⁽⁶⁾	Applies to F250-550 Pickup operated under normal conditions. Inspect and lubricate front hub needle bearings every 60,000 miles. Replace as necessary.

⁽⁷⁾	Applies to F250-550 Pickup only. If used for towing, inspect and lubricate front hub needle bearings every 30,000 miles. If operated in off-road conditions, inspect and lubricate front hub needle bearings every 15,000 miles. Replace as necessary.

⁽⁸⁾	For propane vehicles, drain coalescent fuel filter bowl and replace filter every 30,000 miles. For NGV, drain coalescent fuel filter bowl and replace filter every 25,000 miles.

⁽⁹⁾	Fuel tanks for natural gas and propane vehicles, should be inspected every 30,000 miles and natural gas fuel tanks must be replaced every 15 years.

⁽¹⁰⁾	On light-duty Pickups under 6000 GVW, replace every 100,000 miles. On all trucks over 6000 GVW, replace every 120,000 miles.

⁽¹¹⁾

On Police or Taxi models, or F450-550 Pickup commercial vehicles, replace every 100,000 miles. If operated at or near maximum GVW, in dusty conditions or off-road, replace every 50,000 miles. On all other RWD vehicles without synthetic lubricant and operated under special conditions, replace every 3000 miles or 3 months (which ever comes first).

⁽¹²⁾	See SUPERCHARGER under AIR INDUCTION SYSTEM.

⁽¹³⁾	On vehicles equipped with 4R100 transmission, replace at 30,000 miles. On all other vehicles, replace A/T fluid at 150,000 miles.

⁽¹⁴⁾	Inspect air filter every 7,500 miles, replace as necessary.

⁽¹⁵⁾	Dana axles using non-synthetic lubricants only.