2022 FORD F-650/750 Owners Manual

Page 225 of 379

FORD F-650/750 2022  Owners Manual UNDER HOOD OVERVIEW - 7.3L
Engine compartment fuse box. See Fuses (page 199).
A
Engine oil dipstick.  See 
Engine Oil Dipstick (page 223).
B
Windshield washer fluid reservoir.  See 
Washer Fluid Check

Page 226 of 379

FORD F-650/750 2022  Owners Manual ENGINE OIL DIPSTICK - 6.7L
DIESEL
Minimum.
A
Nominal.
B
Maximum.
C
ENGINE OIL DIPSTICK - 7.3L Minimum.
A
Nominal.
B
Maximum.
C
ENGINE OIL CHECK - 6.7L
DIESEL
To check the engine oil level consistently

Page 227 of 379

FORD F-650/750 2022  Owners Manual Do not use supplemental engine oil
additives because they are unnecessary
and could lead to engine damage that may
not be covered by the vehicle Warranty.
To top up the engine oil level do the
followi

Page 228 of 379

FORD F-650/750 2022  Owners Manual 3. Add engine oil that meets our
specifications.  See Capacities and
Specifications (page 286).
4. Reinstall the engine oil filler cap. Turn it clockwise until you feel a strong
resistance.
Note:  Do

Page 229 of 379

FORD F-650/750 2022  Owners Manual •
Sustained, high-speed driving at the
gross vehicle weight rating.
• Use of fuels with sulfur content other
than ultra-low sulfur diesel (ULSD).
• Use of high-sulfur diesel fuel.
Only use engin

Page 230 of 379

FORD F-650/750 2022  Owners Manual CHANGING THE ENGINE AIR
FILTER - 6.7L DIESEL
Air Filter Restriction Gauge
WARNING: To reduce the risk of
vehicle damage and personal burn
injuries, do not start your engine with the
air cleaner remove

Page 231 of 379

FORD F-650/750 2022  Owners Manual Air Filter Replacement
When replacing the air filter element, use
a Motorcraft® air filter element.  See
Motorcraft Parts (page 288).
Note: Failure to use the correct air filter
element may result in

Page 232 of 379

FORD F-650/750 2022  Owners Manual 5.
Install a new air filter element.  Be sure
that the groove seal on the pleated
paper filter traps both sides of the
vertical partition of the air box.
6. Engage the clips to secure the air filter h