Ford F-650 Owner's Manual page 336

Every 30000 miles (48000
km)
*
Vehicles with dual rear wheels should rotate the front wheels when specified; rear wheels
only if unusual wear is noted.
**
Reset the Intelligent Oil-Life Monitor after engine oil and filter changes.
Using biodiesel, up to and including 20% biodiesel (B20)
As required
Every 15000 miles (24000
km), six months, 600 engine
hours, or as indicated by the
information display
Using fuel other than ultra-low sulfur diesel fuel - vehicles operated where ultra-low
Every 2500 miles (4000
km) or three months (if
using high sulfur fuel with
more than 500 ppm sulfur)
Every 5000 miles (8000
km) or six months (if using
high sulfur fuel with fewer
than 500 ppm sulfur)
Exceptions
There are several exceptions to the Normal
Schedule:
Axle Maintenance
Change the axle fluid anytime an axle is
submerged in water.
F650750 (TBC), enUSA, First Printing
Scheduled Maintenance
Off-road operation
Replace the air inlet foam filter.
Replace the wheel bearing grease and grease seals if using
non-sealed bearings.
Change the engine oil and filter as indicated by the
information display, and perform the services listed in the
scheduled maintenance chart.
Replace the engine-mounted and frame-mounted fuel
filters.
sulfur diesel fuel is not required or available
Change engine oil and filter.
Change engine oil and filter.
I n f o r ma t i o n P r o v i d e d b y :
Rear axles and power take-off 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), change non-synthetic rear axle
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