2021 FORD F650/750 heating

Off-road Operation
Inspect the wheels and related components for abnormal
noise, wear, looseness or drag.
Rotate the tires 1
and inspect them for wear, and measure
the tread depth.
Every 7,500 mi (12,000 km)
1 Rotate the front wheels on vehicles with dual rear wheels when specified. Only rotate
the rear wheels if you notice unusual wear.
Diesel Engine
If you operate your vehicle primarily
in any
of the following conditions, you need to
perform extra maintenance as indicated.
If you operate your vehicle
occasionally
under any of these conditions, it is not
necessary to perform the extra
maintenance. For specific
recommendations, see your dealership
service advisor or technician. Towing a Trailer or Using a Car-top Carrier
Change the engine oil and filter as indicated by the
information display, and perform the services listed in the
scheduled maintenance chart.
As required
See the axle maintenance items under
Exceptions.
Replace the engine-mounted and frame-mounted fuel
filters.
Every
15,000 mi
(24,000 km) or six months,
600 engine hours
Inspect the coolant concentration, freeze-point protection
and additive, corrosion inhibitor strength. Add coolant
additive if necessary.
Every
30,000 mi
(48,000 km) or 1200 engine
hours
Flush and refill the coolant. Do not add coolant additive.
Every
60,000 mi
(96,000 km) or 2400
engine hours
Note: When adding coolant additive, do not exceed the specified maximum of
47 fl oz
(1.4 L) for the engine and 20 fl oz (473 ml) for the secondary cooling system. Operating the
engine with excessive coolant additive may cause overheating which could lead to severe,
permanent engine damage.
Note: After the initial coolant flush and fill at
60,000 mi (96,000 km) or 2400 engine
hours, flush and fill every 45,000 mi (72,000 km) or 1800 engine hours thereafter.
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F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Scheduled Maintenance

Frequent or Extended Idling, Over 10 Minutes Per Hour of Normal Driving or Frequent
Low-speed Operation if You Use Your Vehicle for Stationary Operation
Change the engine oil and filter as indicated by the
information display, and perform the services listed in the
scheduled maintenance chart.
As required
Replace the engine-mounted and frame-mounted fuel
filters.
Every 15,000 mi
(24,000 km), six months or
600 engine hours
Inspect the coolant concentration, freeze-point protection
and additive, corrosion inhibitor strength. Add coolant
additive if necessary.
Every
30,000 mi
(48,000 km) or 1200 engine
hours
Flush and refill the coolant. Do not add coolant additive.
Every
60,000 mi
(96,000 km) or 2400
engine hours
Note: When adding coolant additive, do not exceed the specified maximum of
47 fl oz
(1.4 L) for the engine and 20 fl oz (473 ml) for the secondary cooling system. Operating the
engine with excessive coolant additive may cause overheating which could lead to severe,
permanent engine damage.
Note: After the initial coolant flush and fill at
60,000 mi (96,000 km) or 2400 engine
hours, flush and fill every 45,000 mi (72,000 km) or 1800 engine hours thereafter.
332
F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Scheduled Maintenance

Frequent Low-speed Operation, Consistent Heavy Traffic Under 25 mph (40 km/h) or
Long Rush-hour Traffic
Change the engine oil and filter as indicated by the
information display, and perform the services listed in the
scheduled maintenance chart.
As required
Replace the engine-mounted and frame-mounted fuel
filters.
Every 15,000 mi
(24,000 km), six months or
600 engine hours
Inspect the coolant concentration, freeze-point protection
and additive, corrosion inhibitor strength. Add coolant
additive if necessary.
Every
30,000 mi
(48,000 km) or 1200 engine
hours
Flush and refill the coolant. Do not add coolant additive.
Every
60,000 mi
(96,000 km) or 2400
engine hours
Note: When adding coolant additive, do not exceed the specified maximum of
47 fl oz
(1.4 L) for the engine and 20 fl oz (473 ml) for the secondary cooling system. Operating the
engine with excessive coolant additive may cause overheating which could lead to severe,
permanent engine damage.
Note: After the initial coolant flush and fill at
60,000 mi (96,000 km) or 2400 engine
hours, flush and fill every 45,000 mi (72,000 km) or 1800 engine hours thereafter.
333
F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Scheduled Maintenance

Sustained High-speed Driving at Gross Vehicle Weight Rating, Maximum Loaded Weight
for Vehicle Operation
Change the engine oil and filter as indicated by the
information display, and perform the services listed in the
scheduled maintenance chart.
As required
Replace the engine-mounted and frame-mounted fuel
filters.
Every 15,000 mi
(24,000 km), six months or
600 engine hours
Inspect the coolant concentration, freeze-point protection
and additive, corrosion inhibitor strength. Add coolant
additive if necessary.
Every
30,000 mi
(48,000 km) or 1200 engine
hours
Flush and refill the coolant. Do not add coolant additive.
Every
60,000 mi
(96,000 km) or 2400
engine hours
Note: When adding coolant additive, do not exceed the specified maximum of
47 fl oz
(1.4 L) for the engine and 20 fl oz (473 ml) for the secondary cooling system. Operating the
engine with excessive coolant additive may cause overheating which could lead to severe,
permanent engine damage.
Note: After the initial coolant flush and fill at
60,000 mi (96,000 km) or 2400 engine
hours, flush and fill every 45,000 mi (72,000 km) or 1800 engine hours thereafter. Operating in Sustained Ambient Temperatures Below -9.4°F (-23°C) or Above 100.3°F
(38°C)
Change the engine oil and filter as indicated by the
information display, and perform the services listed in the
scheduled maintenance chart.
As required
Replace the engine-mounted and frame-mounted fuel
filters.
Every
15,000 mi
(24,000 km), six months or
600 engine hours Operating in Dusty or Sandy Conditions, Such as Unpaved or Dusty Roads
Rotate the tires1
, inspect the tires for wear and measure
tread depth.
Every
7,500 mi (12,000 km)
Inspect the brake system pads and rotors.
Inspect the air filter restriction gauge. Replace the filter if
necessary.
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F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Scheduled Maintenance

Head Restraints..............................................82
Adjusting the Head Restraint.......................... 83
Heated Exterior Mirrors.................................81
Heating See: Climate Control........................................... 79
Hill Start Assist..............................................134 Switching the System On and Off...............134
Using Hill Start Assist....................................... 134
Hints on Controlling the Interior Climate...........................................................80
Defogging the Side Windows in Cold Weather............................................................... 81
General Hints........................................................ 80
Quickly Cooling the Interior............................. 80
Quickly Heating the Interior............................. 80
Recommended Settings for Cooling............80
Recommended Settings for Heating...........80
Vehicle Stationary for Extended Periods During Extreme High Ambient
Temperatures.................................................... 81
Hints on Driving With Anti-Lock Brakes..............................................................131
Hood Lock See: Opening and Closing the Hood...........213
Horn
.....................................................................53
I
Ignition Switch
................................................93
In California (U.S. Only).............................188
Information Display Control.......................53
Information Displays
.....................................70
General Information............................................ 70
Information Messages
..................................73
Diesel Messages.................................................... 74
Engine........................................................................\
77
Fuel........................................................................\
..... 77
Key........................................................................\
...... 77
Maintenance........................................................... 77
Park Brake............................................................... 78
Installing Child Restraints...........................26 Child Restraints..................................................... 26
Tether Strap Attachment................................... 31
Using Cinch Tongue Lap and Shoulder Belts (All Front Center, Super Cab and Crew
Cab Rear Center Positions)......................... 28
Using Lap and Shoulder Belts......................... 26Using Lower Anchors and Tethers for
CHildren (LATCH)........................................... 30
Using Tether Straps............................................ 30
Instrument Cluster
.........................................63
Instrument Lighting Dimmer.....................56
Instrument Panel............................................22
Interior Lamps
.................................................58
Interior Mirror...................................................62
Introduction.........................................................7
J
Jump Starting the Vehicle.........................183 Connecting the Jumper Cables..................... 183
Jump Starting...................................................... 184
Preparing Your Vehicle..................................... 183
Removing the Jumper Cables........................ 184
K
Keys and Remote Controls.........................45
L
Lane Keeping System..................................157 Switching the System On and Off...............158
System Display.................................................... 158
System Settings.................................................. 158
Troubleshooting.................................................. 159
Lighting Control
..............................................55
Flashing the Headlamp High Beam..............56
Headlamp High Beam........................................ 55
Lighting..............................................................55 General Information............................................ 55
Load Carrying.................................................168
Load Limit.......................................................168 Unloaded or Lightly Loaded Vehicles.........168
Locating the USB Ports
................................91
Charge Only USB Ports....................................... 91
Data Transfer USB Ports.................................... 91
Locking and Unlocking.................................49 Autolock.................................................................. 49
Battery Saver......................................................... 50
Illuminated Entry.................................................. 50
Power Door Locks................................................ 49
Remote Control.................................................... 49
Smart Unlocks...................................................... 49
382
F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Index