Ford 2003 Mustang Workshop Manual page 23

Change engine oil and install a new oil filter, lube front lower control arm and steering linkage
ball joints with zerk fittings (if equipped) every 4,800 km (3,000 miles) or 3 months.
Inspect brake system and check battery electrolyte level (Patrol cars) every 8,000 km (5,000
miles).
Install a new fuel filter every 24,000 km (15,000 miles).
Change automatic transmission fluid, lubricate 4x2 wheel bearings, install new grease seals and
adjust bearings every 48,000 km (30,000 miles).
Install new spark plugs and change transfer case fluid every 96,000 km (60,000 miles).
Install a new cabin air filter as required.
When operating in dusty conditions such as unpaved or dusty roads:
Change engine oil and install a new oil filter every 4,800 km (3,000 miles) or 3 months.
Install a new fuel filter every 24,000 km (15,000 miles).
Change automatic transmission fluid every 48,000 km (30,000 miles).
Change transfer case fluid every 96,000 km (60,000 miles).
Install a new engine air filter as required.
Install a new cabin air filter as required.
When operating in off-road conditions:
Change automatic transmission fluid every 48,000 km (30,000 miles).
Change transfer case fluid every 96,000 km (60,000 miles).
Install a new cabin air filter as required.
Inspect and lubricate U-joints.
Inspect and lubricate steering linkage ball joints with zerk fittings.
Checks and Services
Certain basic maintenance checks and inspections should be carried out at specified intervals. Any
recognized adverse condition should be corrected as soon as possible.
Maximum Oil Change Interval (Normal Schedule)
8,000 km (5,000 miles) or 6 months, whichever occurs first.
Maximum Oil Change Interval (Special Operating Conditions)
4,800 km (3,000 miles) or 3 months.
Monthly Checks
Check each of the following items every month:
All interior and exterior lights.
Tires for wear and correct air pressure.