EXCEPTIONS
In addition, there are several exceptions to the Normal Schedule. They
are listed below:
Normal vehicle axle maintenance:Rear axles and power take-off
(PTO) units with synthetic fluid and light-duty trucks equipped with
Ford-design axles are lubricated for life; do not check or change fluid
unless a leak is suspected, service is required or the assembly has been
submerged in water. During long periods of trailer towing with outside
temperatures above 70°F (21°C) and at wide-open throttle for long
periods above 45 mph (72 km/h), non-synthetic rear axle fluids should
be changed every 3000 miles (4800 kilometers) or three months,
whichever comes first. This interval can be waived if the axle is filled
with 75W140 synthetic gear fluid meeting Ford specification
WSL-M2C192-A, part number F1TZ-19580-B or equivalent. Add friction
modifier XL-3 (EST-M2C118-A) or equivalent for complete refill of
Traction-Lok rear axles (refer toTechnical specificationsin the
Maintenancechapter for details).
F-450 and F-550 axle maintenance:Change rear axle fluid every
100000 miles (160000 kilometers) under normal driving conditions on all
commercial applications. For trucks operated at or near maximum Gross
Vehicle Weights, the rear axle fluid should be changed every 50000 miles
(80000 kilometers). In addition, this 50000 mile (80000 kilometer)
schedule should be observed when the vehicles are operated under the
special operating conditions, where noted.
Diesel Particulate Filter (DPF):The DPF may need to be removed
for ash cleaning at approximately 120000 miles (192000 kilometers) or
greater (actual mileage can vary greatly depending upon engine/vehicle
operating conditions) and replaced with a new or remanufactured (ash
cleaned) part. The filter may need to be replaced at approximately
250000 miles (400000 kilometers) depending upon engine/vehicle
operating conditions. In both cases the engine control system will set a
service light (
) to inform you to bring the vehicle to the dealer for
service. If there are any issues with the oxidation catalyst/DPF system a
service light (
or) will be set by the engine control system to
inform you to bring the vehicle into a dealership for service.
Scheduled Maintenance
91
2013 Diesel(67l)
Supplement, 1st Printing
USA(fus)
