2021 FORD F650/750 coolant temperature

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.
334
F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Scheduled Maintenance

Driving Aids.....................................................156
Driving Hints....................................................176
Driving Through Water...............................180
Operation in Standing Water......................... 180
DRL See: Daytime Running Lamps......................... 57
E
Economical Driving.......................................177
Electrical System Inspection...................247 Accessory Feed Connections........................ 247
Electromagnetic Compatibility
..............348
Electronic Locking Differential................128 Activating the Electronic Locking
Differential....................................................... 128
Driver-Controlled Electronic Locking Differential....................................................... 128
Servicing a Vehicle with an Electronic Locking Differential....................................... 129
Emission Law.................................................109 Noise Emissions Warranty, Prohibited
Tampering Acts and Maintenance...........110
Tampering With a Noise Control System.............................................................. 109
End User License Agreement...................351 VEHICLE SOFTWARE END USER LICENSE
AGREEMENT (EULA) .................................. 351
Engine Block Heater
......................................97
Using the Engine Block Heater........................ 97
Engine Coolant Check - 6.7L Diesel.......231 Adding Coolant.................................................... 231
Checking Coolant Corrosion Inhibitor Additive Strength ......................................... 234
Coolant Change.................................................. 235
Engine and Secondary Cooling System Refill Procedure............................................. 233
Engine-driven Cooling Fan (Fan Clutch).............................................................. 235
Recycled Coolant............................................... 233
Severe Climates................................................. 234
Engine Coolant Check - 7.3L....................226 Adding Coolant................................................... 227
Coolant Change................................................. 229
Engine Coolant Temperature Management.................................................. 230
Engine-driven Cooling Fan (Fan Clutch).............................................................. 229Fail-Safe Cooling...............................................
229
Recycled Coolant............................................... 228
Severe Climates................................................. 228
Engine Emission Control...........................109
Engine Idle Shutdown..................................96
Engine Immobilizer See: Passive Anti-Theft System...................... 51
Engine Oil Check - 6.7L Diesel
.................218
Adding Engine Oil............................................... 219
Engine lubrication for severe service operation .......................................................... 219
Engine Oil Check - 7.3L
................................217
Adding Engine Oil................................................ 217
Engine Oil Dipstick - 6.7L Diesel..............217
Engine Oil Dipstick - 7.3L............................217
Engine Specifications - 6.7L Diesel
........281
Drivebelt Routing................................................ 281
Engine Specifications - 7.3L.....................282 Drivebelt Routing............................................... 283
Entering, Exiting or Climbing on This Vehicle
.............................................................20
Environment......................................................21
Essential Towing Checks............................173 Before Towing a Trailer...................................... 173
Hitches.................................................................... 173
Safety Chains........................................................ 173
Trailer Brakes........................................................ 173
Trailer Lamps........................................................ 173
When Towing a Trailer....................................... 173
Event Data Recording See: Data Recording............................................. 13
Exhaust Brake
................................................136
Exhaust Brake Operating
Characteristics................................................ 137
Exhaust System Inspection.....................248
Export Unique Options.................................19
Exterior Mirrors...............................................60 Auxiliary Convex Mirrors.................................... 60
Clearance Lamps.................................................. 61
Foldaway Exterior Mirrors................................. 60
Heated Exterior Mirrors....................................... 61
Power Exterior Mirrors........................................ 60
Signal Indicator Mirrors....................................... 61
Telescoping Mirrors.............................................. 61
380
F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Index

F
Fastening the Seatbelts..............................38
Energy Management Feature........................... 41
Fastening the Cinch Tongue............................ 39
Lap Belts.................................................................. 39
Seatbelt Locking Modes................................... 40
Using Seatbelts During Pregnancy...............40
Using the Seatbelt with Cinch Tongue (Front Center and Rear Center Seats
Only).................................................................... 38
Federal Highway Administration Regulation......................................................20
Fifth Wheel Operation.................................174
Hook-up.................................................................. 174
Un-hook.................................................................. 174
Flat Tire See: Changing a Road Wheel........................ 277
Ford Credit
..........................................................17
US Only...................................................................... 17
Ford Protect
....................................................317
Ford Protect Extended Service Plan
(CANADA ONLY)........................................... 318
Ford Protect Extended Service Plans (U.S. Only).................................................................... 317
Frame and Tow Hook Inspection...........253
Front Seat Armrest........................................87 20% Seat Cushion Storage............................. 88
Fuel and Refueling........................................99
Fuel Consumption
.......................................106
Calculating Fuel Economy.............................. 107
Filling the Fuel Tank........................................... 107
Fuel Filter - 7.3L.............................................242
Fuel Quality - Diesel....................................100 Biodiesel................................................................. 101
Diesel Fuel Additives......................................... 102
Fuel Requirements - Choosing The Right Fuel: Vehicles Operated Where Ultra Low
Sulfur Diesel Fuel Is Not Required ..........101
Fuel Requirements - Choosing The Right Fuel: Vehicles Operated Where Ultra Low
Sulfur Diesel Fuel Is Required (United
States/Canada/Puerto Rico/U.S. Virgin
Islands And Other Locales) ..................... 100
Fuel Quality - Gasoline...............................103 Choosing the Right Fuel.................................. 103
Fuel Shutoff....................................................182
Fuel Tank Selector Switch........................108 Fuses.................................................................193
Fuse Specification Chart...........................193
Engine Compartment Fuse Box.................... 193
Passenger Compartment Fuse Box............198
G
Gauges...............................................................63 2.3 Inch Display..................................................... 63
8 Inch Display........................................................ 64
Configurable Gauge............................................ 65
Engine Coolant Temperature Gauge............65
Engine Oil Pressure Gauge............................... 65
Fuel Gauge.............................................................. 65
Gearbox See: Transmission............................................... 122
General Driving Points.................................176 Backing Up............................................................ 176
General Information........................................... 176
Parking.................................................................... 176
General Information on Radio Frequencies...................................................45
Intelligent Access................................................. 45
General Maintenance Information........319 Multi-point Inspection...................................... 323
Owner Checks and Services........................... 321
Protecting Your Investment............................ 319
Why Maintain Your Vehicle?.......................... 319
Why Maintain Your Vehicle at Your Dealership?...................................................... 319
Getting Assistance Outside the U.S. and Canada..........................................................190
Getting the Services You Need................187 Away From Home............................................... 187
H
Handbrake See: Parking Brake............................................... 131
Hazard Flashers............................................182
Headlamp Adjusting See: Adjusting the Headlamps.................... 240
Headlamp Exit Delay
....................................56
Headlamp Removal See: Removing a Headlamp.......................... 243
Headrest See: Head Restraints.......................................... 82
381
F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Index

Blocked Sensor....................................................
152
Canceling the Set Speed................................. 150
Changing the Set Speed................................. 150
Detection Issues................................................... 151
Following a Vehicle............................................ 149
Hilly Condition and Trailer Tow Usage.........151
Overriding the Set Speed................................ 150
Resuming the Set Speed.................................. 151
Setting the Adaptive Cruise Speed.............149
Setting the Gap Distance................................ 150
Switching Adaptive Cruise Control Off........................................................................\
. 151
Switching Adaptive Cruise Control On........................................................................\
148
System Not Available........................................ 152
Using Snow Chains......................................277
Using Stability Control...............................146
Using Traction Control - Vehicles With: Air Brakes
......................................................142
System Indicator Light...................................... 142
Using Traction Control - Vehicles With: Hydraulic Brakes........................................142
System Indicator Light...................................... 143
Using Voice Recognition............................313 Phone Voice Service.......................................... 313
V
Vehicle Care
...................................................255
General Information......................................... 255
Vehicle Identification Number
...............286
Vehicle Inspection Guide..........................203
Vehicle Inspection Information..............203
Trailer...................................................................... 210
Transmission........................................................ 210
Vehicle Storage............................................260 Body....................................................................... 260
Brakes..................................................................... 261
Cooling system................................................... 260
Disconnecting Your 12 Volt Battery............260
Engine.................................................................... 260
Fuel system......................................................... 260
General.................................................................. 260
Miscellaneous...................................................... 261
Removing Vehicle From Storage.................. 261
Tires........................................................................\
. 261
Ventilation See: Climate Control........................................... 79VIN
See: Vehicle Identification Number............286
W
Warning Lamps and Indicators................66 Anti-Lock Braking System................................ 66
Automatic Regeneration Control................... 66
Battery..................................................................... 66
Brake System........................................................ 66
Check Suspension............................................... 66
Cruise Control....................................................... 66
Diesel Exhaust Fluid........................................... 66
Direction Indicator............................................... 66
Door Ajar.................................................................. 67
Electronic Locking Differential........................ 67
Engine Coolant Temperature........................... 67
Engine Oil Pressure.............................................. 67
Exhaust Brake On................................................. 67
Fasten Seatbelt..................................................... 67
High Beam............................................................... 67
Hydromax................................................................ 67
Low Fuel Level....................................................... 67
Parking Brake Warning....................................... 67
Parking Lamps....................................................... 67
Powertrain Malfunction/Reduced Power/Electronic Throttle Control...........68
Service Engine Soon........................................... 68
Stability Control Indicator................................ 68
Traction Control Indicator................................. 68
Traction Control System Off........................... 68
Trailer Anti-Lock Brake System (ABS) ................................................................... 68
Transmission Tow/Haul.................................... 69
Two Speed Axle.................................................... 69
Wait to Start.......................................................... 69
Water in Fuel.......................................................... 69
Washer Fluid Check....................................242
Washers See: Cleaning the Exterior.............................. 256
See: Wipers and Washers................................. 54
Waxing..............................................................257
What Is Cruise Control................................154 Requirements.......................................................154
Wheel Nuts See: Changing a Road Wheel........................ 277
Wheels and Tires
.........................................262
Technical Specifications................................. 279
386
F650750 (TBC) , enUSA, Edition date: 202010, Second-Printing Index