2020 FORD F450 SUPER DUTY clock

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Page 351 of 633

FORD F450 SUPER DUTY 2020  Owners Manual 3. Make sure that your vehicle is on level
ground.
4. Switch the engine off and wait 15 minutes for the oil to drain into the oil
pan.  Checking the engine oil level too
soon after you switch the engi

Page 352 of 633

FORD F450 SUPER DUTY 2020  Owners Manual 1.
Make sure the parking brake is on. Make
sure the transmission is in park (P) or
neutral (N).
2. Run the engine until it reaches normal operating temperature.
3. Make sure that your vehicle is on le

Page 360 of 633

FORD F450 SUPER DUTY 2020  Owners Manual 3. Use the table to find the location of
your fuel filter. 4. Drain the diesel fuel conditioner
module.  Turn the drain plug
counterclockwise until it stops.  Do not
use any tools to loosen the drain

Page 362 of 633

FORD F450 SUPER DUTY 2020  Owners Manual To top up the coolant level do the
following:
1. Unscrew the cap slowly. Any pressure
escapes as you unscrew the cap.
2. Add prediluted coolant meeting the correct specification.  See Scheduled
Mainte

Page 366 of 633

FORD F450 SUPER DUTY 2020  Owners Manual It is very important to use prediluted
coolant approved to the correct
specification to avoid plugging the small
passageways in the engine cooling system.
See Capacities and Specifications
(page 450).

Page 367 of 633

FORD F450 SUPER DUTY 2020  Owners Manual Alcohol and other liquids can cause engine
damage from overheating or freezing.
Do not add extra inhibitors or non-specified
additives to the coolant. These can be
harmful and compromise the corrosion

Page 370 of 633

FORD F450 SUPER DUTY 2020  Owners Manual For vehicles with overflow coolant systems
with a non-pressurized cap on the coolant
recovery system, add coolant to the
coolant recovery reservoir when the engine
is cool. Add prediluted coolant to t

Page 377 of 633

FORD F450 SUPER DUTY 2020  Owners Manual 4. Press the brake pedal and start your
vehicle.
5. Run the engine until it reaches normal operating temperature. While the
engine is warming up, complete the
following: Reset the clock. Reset the
pow