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In addition, there are several exceptions to the Normal Schedule. They are listed below:
Maximim Oil Change Interval
❑ Nor mal Schedule: 5,000 miles or 6 months, whichever occurs first.
❑ Special Operating Conditions: 3,000 miles, 3 months, or 200 hours of engine operation, whichever
occurs first see appropriate schedule on pages 42-43.
Motorcraft Premium Gold Engine Coolant
❑ 6 years or 100,000 miles - change Premuim Gold coolant (whichever comes first)
❑ After initial change - change Premium Gold coolant every 3 years or 50,000 miles (see page 48)
Normal Vehicle Axle Maintenance
❑ Rear axles and power take off (PTO) units containing synthetic lubricant and light duty trucks equipped
with Ford-design axles are lubricated for life. These lubricants are not to be checked or changed unless
a leak is suspected, service is required or the axle assembly has been submerged in water. The axle
and PTO lubricant should be changed anytime the axle and PTO have been submerged in water. During
extended trailer tow operation above 70°F (21°C) ambient and wide open throttle for extended
periods above 45 mph, non-synthetic rear axle lubricants should be replaced every 3,000 miles or
3 months, whichever occurs first. The 3,000 mile lube change interval may be waived if the axle was
filled with 75W140 synthetic gear lubricant meeting Ford specification WSL-M2C192-A, part number
F1TZ-19580-B or equivalent. Add friction modifier C8AZ-19B546-A (EST-M2C118-A) or equivalent for
complete refill of Traction-Lok rear axles (see “Owner’s Guide” for quantity). The axle lubricant should
be changed anytime an axle has been submerged in water.
Police and Taxi Vehicle Axle Maintenance
❑ Replace rear axle lubricant every 100,000 miles. Rear axle lubricant change may be waived if the
axle was filled with 75W140 synthetic gear lubricant meeting Ford specification WSL-M2C192-A, part
number FITZ-19580-B or equivalent. Add four ounces of additive friction modifier C8AZ-19B546-A
(EST-M2C118-A) or equivalent for complete refill of Traction-Lok rear axles. The axle lubricant should
be changed anytime the axle has been submerged in water.
E
XCEPTIONS
46
Scheduled Maintenance
Special Operating Conditions & Exceptions