2023 LINCOLN AVIATOR coolant

Answer Question
In order to make sure that the climate control system can begin heating
the cabin or defrosting the windshield as soon as you request it, the
engine coolant temperature has to be kept sufficiently hot. Keeping
the engine on is required to maintain the correct coolant temperature. Why does my engine stay on when it is extremely cold outside?
Your hybrid vehicle can use E15 fuel (15% ethanol, 85% gasoline), but
you could notice slightly reduced fuel economy because ethanol
contains less energy per gallon than gasoline. Your hybrid vehicle is
not designed to use E85 (85% ethanol). Can I put E15 or E85 in my vehicle, and how will it affect my fuel
economy?
The high voltage battery system is designed to last the life of the
vehicle and requires no maintenance. How long will my high voltage battery last? Does it need maintenance?
222
Unique Driving Characteristics

REDUCED ENGINE PERFORMANCE
WARNING: If you continue to drive
your vehicle when the engine is
overheating, the engine could stop without
warning. Failure to follow this instruction
could result in the loss of control of your
vehicle.
If the engine coolant temperature gauge
needle moves to the upper limit position, the
engine is overheating. See Gauges (page
128).
You must only drive your vehicle for a short
distance if the engine overheats. The
distance you can travel depends on ambient
temperature, vehicle load and terrain. The
engine continues to operate with limited
power for a short period of time.
If the engine temperature continues to rise,
the fuel supply to the engine reduces. The
air conditioning switches off and the engine
cooling fan operates continually.1. Gradually reduce your speed and stop
your vehicle as soon as it is safe to do
so.
2. Immediately switch the engine off to
prevent severe engine damage.
3. Wait for the engine to cool down.
4. Check the coolant level. See Engine
Coolant Check (page 404).
5. Have your vehicle checked as soon as
possible.
COLD WEATHER PRECAUTIONS
The functional operation of some
components and systems can be affected at
temperatures below approximately -13°F
(-25°C).
BREAKING-IN
You need to break in new tires for
approximately 300 mi (480 km). During this
time, your vehicle may exhibit some unusual
driving characteristics.
DRIVING ECONOMICALLY
The following helps to improve fuel
consumption:
• Drive smoothly, accelerate gently and
anticipate the road ahead to avoid heavy
braking.
• Regularly check your tire pressures and
make sure that they are inflated to the
correct pressure.
• Follow the recommended maintenance
schedule and carry out the
recommended checks.
• Plan your journey and check the traffic
before you set off. It is more efficient to
combine errands into a single trip
whenever possible.
• Avoid idling the engine in cold weather
or for extended periods. Start the engine
only when you are ready to set off.
• Do not carry unnecessary weight in your
vehicle as extra weight wastes fuel.
361
Driving Hints

Protected Component Fuse Rating Fuse or Relay Number
Fuel pump. 30A 4
Powertrain control module keep alive power. 5A 5
Powertrain control module power. 20A 6
Canister vent solenoid. 20A 7
Evaporative leak control module.
Exhaust gas heat recovery.
Tank pressure control valve.
Refueling valve.
Vapor blocking valve.
Universal exhaust gas oxygen 11.
Universal exhaust gas oxygen 21.
Catalyst monitor sensor 12.
Catalyst monitor sensor 22.
Canister purge valve.
Cooling fan relay coil. 20A 8
Battery interrupt box.
Transmission oil pump.
Auxiliary coolant pump.
Fuel flap door.
Engine coolant bypass valve.
Active grille shutters.
Ignition coils. 20A 9
384
Fuses

Protected Component Fuse Rating Fuse or Relay Number
Rear blower motor. 20A 88
Trailer tow lighting module. 20A 91
Integrated spark control. 15A 95
Not used (spare). 15A 96
Electric A/C. 10A 97
High voltage positive temperature coefficient heater.
Traction battery coolant proportional valve. 10A 98
Not used (spare). 50A 103
Not used (spare). 50A 104
Not used (spare). 40A 105
Not used (spare). 40A 106
Not used (spare). 40A 107
Not used (spare). 20A 108
Passenger door module. 30A 109
Body control module voltage quality monitor feed. 30A 111
Left-hand rear electronic door. 20A 112
388
Fuses

Protected Component Fuse Rating Fuse or Relay Number
Battery electronic control module. 15A 146
Left-hand headlamp module. 30A 148
Right-hand headlamp module. 30A 149
Not used (spare). 40A 150
Transmission control module. 25A 155
DC/DC converter. 15A 159
Not used (spare). 10A 160
Low voltage service disconnect. 20A 168
Coolant pump. 10A 169
Traction battery coolant pump. 10A 170
Pedestrian sounder.
Center console blower. 10A 177
Note: Spare fuse amperage may vary.
Passenger Compartment Fuse Panel
The fuse panel is under the instrument panel
to the left of the steering column.Note:It may be easier to access the fuse
panel if you remove the finish trim piece.
390
Fuses

Brake fluid reservoir. See Brake Fluid Check (page 409). D
Engine compartment fuse box. See Fuses (page 382). E
Engine coolant reservoir. See Engine Coolant Check (page 404). F
Air filter assembly. See Changing the Engine Air Filter (page 402). G
Washer fluid reservoir. See Washer Fluid Check (page 417). H
ENGINE OIL DIPSTICK
E250320E250320
Minimum. A
Nominal. B
Maximum. C
ENGINE OIL CHECK
1. Make sure that your vehicle is on level
ground.
2. Check the oil before starting the engine
or switch the engine off and wait 10
minutes for the oil to drain into the oil
pan.
3. Remove the dipstick and wipe it with a
clean, lint-free cloth.
4. Reinstall the dipstick and make sure it is
fully seated. Remove it again to check
the oil level.
5. If the oil level is between the maximum
and minimum marks, the oil level is
acceptable. Do not add oil.6. If the oil level is at the minimum mark,
immediately add oil.
7. Reinstall the dipstick. Make sure it is fully
seated.
Note:The oil consumption of new engines
reaches its normal level after approximately
3,000 mi (5,000 km).
Adding Engine Oil
WARNING: Do not remove the filler
cap when the engine is running.
WARNING: Do not add engine oil
when the engine is hot. Failure to follow
this instruction could result in personal
injury.
401
Maintenance

ENGINE COOLANT CHECK
WARNING: Do not remove the
coolant reservoir cap when the engine is
on or the cooling system is hot. Wait 10
minutes for the cooling system to cool
down. Cover the coolant reservoir cap with
a thick cloth to prevent the possibility of
scalding and slowly remove the cap.
Failure to follow this instruction could result
in personal injury.
WARNING: Do not put coolant in the
windshield washer reservoir. If sprayed on
the windshield, coolant could make it
difficult to see through the windshield.
WARNING: To reduce the risk of
personal injury, make sure the engine is
cool before unscrewing the coolant
pressure relief cap. The cooling system is
under pressure. Steam and hot liquid can
come out forcefully when you loosen the
cap slightly.When the engine is cold, check the
concentration and level of the coolant at the
intervals listed in the scheduled maintenance
information. See Scheduled Maintenance
(page 579).
Note:Make sure that the coolant level is
between the MIN and the MAX marks on
the coolant reservoir.
Note: Coolant expands when it is hot. The
level may extend beyond the MAX mark.
Maintain coolant concentration within 48%
to 50%, which equates to a freeze point
between -29°F (-34°C) and -35°F (-37°C).
Coolant concentration should be checked
using a refractometer. We do not recommend
the use of hydrometers or coolant test strips
for measuring coolant concentration.Adding Coolant
WARNING: Do not add coolant
further than the MAX mark.
WARNING: Do not add coolant when
the vehicle is on or the cooling system is
hot. Failure to follow this instruction could
result in personal injury.
WARNING: Do not remove the
coolant reservoir cap when the engine is
on or the cooling system is hot. Wait 10
minutes for the cooling system to cool
down. Cover the coolant reservoir cap with
a thick cloth to prevent the possibility of
scalding and slowly remove the cap.
Failure to follow this instruction could result
in personal injury.
WARNING: Do not put coolant in the
windshield washer reservoir. If sprayed on
the windshield, coolant could make it
difficult to see through the windshield.
Note: Do not use stop leak pellets, cooling
system sealants, or non-specified additives
as they can cause damage to the engine
cooling or heating systems. Resulting
component damage may not be covered by
the vehicle Warranty.
404
Maintenance

Note:Automotive fluids are not
interchangeable.
It is very important to use prediluted coolant
approved to the correct specification in order
to avoid plugging the small passageways in
the engine cooling system. See Capacities
and Specifications (page 460). Do not mix
different colors or types of coolant in your
vehicle. Mixing of engine coolants or using
an incorrect coolant may harm the engine or
cooling system components and may not be
covered by the vehicle Warranty.
Note:If prediluted coolant is not available,
use the approved concentrated coolant
diluting it to 50/50 with distilled water. See
Capacities and Specifications (page 460).
Using water that has not been deionised
may contribute to deposit formation,
corrosion and plugging of the small cooling
system passageways.
Note: Coolants marketed for all makes and
models may not be approved to our
specifications and may cause damage to
the cooling system. Resulting component
damage may not be covered by the vehicle
Warranty.If the coolant level is at or below the
minimum mark, add prediluted coolant
immediately.
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 approved to the
correct specification. See Capacities and
Specifications (page 460).
3. Add enough prediluted coolant to reach
the correct level.
4. Replace the coolant reservoir cap. Turn
the cap clockwise until it contacts the
hard stop.
5. Check the coolant level in the coolant
reservoir the next few times you drive
your vehicle. If necessary, add enough
prediluted engine coolant to bring the
coolant level to the correct level.
If you have to add more than 1.1 qt (1 L) of
engine coolant per month, have your vehicle
checked as soon as possible. Operating an
engine with a low level of coolant can result
in engine overheating and possible engine
damage.In case of emergency, you can add a large
amount of water without engine coolant in
order to reach a vehicle service location. In
this instance, qualified personnel:
1. Must drain the cooling system.
2. Chemically clean the coolant system.
3. Refill with engine coolant as soon as
possible.
Water alone, without engine coolant, can
cause engine damage from corrosion,
overheating or freezing.
Do not use the following as a coolant
substitute:
• Alcohol.
• Methanol.
• Brine.
• Any coolant mixed with alcohol or
methanol antifreeze.
Alcohol and other liquids can cause engine
damage from overheating or freezing.
Do not add extra inhibitors or additives to
the coolant. These can be harmful and
compromise the corrosion protection of the
coolant.
405
Maintenance