Page 177 of 571

•
Make sure the heater, heater cord and
extension cord are firmly connected.
• Check for heat anywhere in the
electrical hookup once the system has
been operating for approximately 30
minutes.
• Make sure the system is unplugged and
properly stowed before starting and
driving your vehicle. Make sure the
protective cover seals the prongs of the
block heater cord plug when not in use.
• Make sure the heater system is
checked for proper operation before
winter.
Using the Engine Block Heater
Make sure the receptacle terminals are
clean and dry prior to use. Clean them with
a dry cloth if necessary.
The heater uses 0.4 to 1.0 kilowatt-hours
of energy per hour of use. The system does
not have a thermostat. It achieves
maximum temperature after
approximately three hours of operation.
Using the heater longer than three hours
does not improve system performance and
unnecessarily uses electricity.
174
Explorer (TUB) Canada/United States of America, enUSA, Edition date: 201711, Fourth-Printing Starting and Stopping the Engine
Page 178 of 571

SAFETY PRECAUTIONS
WARNING: Do not overfill the fuel
tank. The pressure in an overfilled tank may
cause leakage and lead to fuel spray and
fire. WARNING: The fuel system may be
under pressure. If you hear a hissing sound
near the fuel filler inlet, do not refuel until
the sound stops. Otherwise, fuel may spray
out, which could cause serious personal
injury. WARNING: Fuels can cause serious
injury or death if misused or mishandled. WARNING:
Fuel may contain
benzene, which is a cancer-causing agent. WARNING:
When refueling always
shut the engine off and never allow sparks
or open flames near the fuel tank filler
valve. Never smoke or use a cell phone
while refueling. Fuel vapor is extremely
hazardous under certain conditions. Avoid
inhaling excess fumes.
Follow these guidelines when refueling:
• Extinguish all smoking materials and
any open flames before refueling your
vehicle.
• Always switch the engine off before
refueling.
• Automotive fuels can be harmful or
fatal if swallowed. Fuel is highly toxic
and if swallowed can cause death or
permanent injury. If fuel is swallowed
immediately call a physician, even if no
symptoms are immediately apparent.
The toxic effects of fuel may not be
apparent for hours. •
Avoid inhaling fuel vapors. Inhaling fuel
vapor can lead to eye and respiratory
tract irritation. In severe cases,
excessive or prolonged breathing of
fuel vapor can cause serious illness and
permanent injury.
• Avoid getting fuel in your eyes. If you
splash fuel in your eyes, immediately
remove contact lenses (if worn), flush
with water for 15 minutes and seek
medical attention. Failure to seek
proper medical attention could lead to
permanent injury.
• Fuels can be harmful if absorbed
through the skin. If you splash fuel on
your skin, clothing or both, promptly
remove contaminated clothing and
thoroughly wash your skin with soap
and water. Repeated or prolonged skin
contact causes skin irritation.
• Be particularly careful if you are taking
Antabuse or other forms of Disulfiram
for the treatment of alcoholism.
Breathing fuel vapors could cause an
adverse reaction, serious personal
injury or sickness. Immediately call a
physician if you experience any adverse
reactions.
FUEL QUALITY - GASOLINE
Choosing the Right Fuel Your vehicle is designed to operate on
regular unleaded gasoline with a minimum
pump (R+M)/2 octane rating of 87.
175
Explorer (TUB) Canada/United States of America, enUSA, Edition date: 201711, Fourth-Printing Fuel and RefuelingE161513
Page 179 of 571

Some fuel stations, particularly those in
high altitude areas, offer fuels posted as
regular unleaded gasoline with an octane
rating below 87. The use of these fuels
could result in engine damage that will not
be covered by the vehicle warranty.
For best overall vehicle and engine
performance, premium fuel with an octane
rating of 91 or higher is recommended. The
performance gained by using premium fuel
is most noticeable in hot weather as well
as other conditions, for example when
towing a trailer. See Towing (page 249).
Do not be concerned if the engine
sometimes knocks lightly. However, if the
engine knocks heavily while using fuel with
the recommended octane rating, contact
an authorized dealer to prevent any engine
damage.
We recommend Top Tier detergent
gasolines, where available to help minimize
engine deposits and maintain optimal
vehicle and engine performance. For
additional information, refer to
www.toptiergas.com.
Note: Use of any fuel for which the vehicle
was not designed can impair the emission
control system, cause loss of vehicle
performance, and cause damage to the
engine which may not be covered by the
vehicle Warranty.
Do not use:
• Diesel fuel.
• Fuels containing kerosene or paraffin.
• Fuel containing more than 15% ethanol
or E85 fuel.
• Fuels containing methanol.
• Fuels containing metallic-based
additives, including manganese-based
compounds. •
Fuels containing the octane booster
additive, methylcyclopentadienyl
manganese tricarbonyl (MMT).
• Leaded fuel, using leaded fuel is
prohibited by law.
The use of fuels with metallic compounds
such as methylcyclopentadienyl
manganese tricarbonyl (commonly known
as MMT), which is a manganese-based
fuel additive, will impair engine
performance and affect the emission
control system.
FUEL QUALITY - E85
Choosing the Right Fuel - Flex Fuel
Vehicles
Flex fuel vehicles have one of the following
identifiers:
• Yellow fuel filler cap.
• Yellow bezel around the fuel filler inlet.
• Yellow fuel filler housing.
• Yellow E85 label on the fuel tank filler
door. Your vehicle is designed to operate on
regular unleaded gasoline with a minimum
pump (R+M)/2 octane rating of 87 or
regular unleaded gasoline blended with a
maximum of 85% ethanol (E85).
176
Explorer (TUB) Canada/United States of America, enUSA, Edition date: 201711, Fourth-Printing Fuel and RefuelingE161513
Page 180 of 571

Some fuel stations, particularly those in
high altitude areas, offer fuels posted as
regular unleaded gasoline with an octane
rating below 87. The use of these fuels
could result in engine damage that will not
be covered by the vehicle warranty.
For best overall vehicle and engine
performance, premium fuel with an octane
rating of 91 or higher is recommended. The
performance gained by using premium fuel
is most noticeable in hot weather as well
as other conditions, for example when
towing a trailer. See Towing (page 249).
Do not be concerned if the engine
sometimes knocks lightly. However, if the
engine knocks heavily while using fuel with
the recommended octane rating, contact
an authorized dealer to prevent any engine
damage.
We recommend Top Tier detergent
gasolines, where available to help minimize
engine deposits and maintain optimal
vehicle and engine performance. For
additional information, refer to
www.toptiergas.com.
Note: Use of any fuel for which the vehicle
was not designed can impair the emission
control system, cause loss of vehicle
performance, and cause damage to the
engine which may not be covered by the
vehicle Warranty.
Do not use:
• Diesel fuel.
• Fuels containing kerosene or paraffin.
• Fuels containing more than 85%
ethanol or E100 fuel.
• Fuels containing methanol.
• Fuels containing metallic-based
additives, including manganese-based
compounds. •
Fuels containing the octane booster
additive, methylcyclopentadienyl
manganese tricarbonyl (MMT).
• Leaded fuel, using leaded fuel is
prohibited by law.
The use of fuels with metallic compounds
such as methylcyclopentadienyl
manganese tricarbonyl (commonly known
as MMT), which is a manganese-based
fuel additive, will impair engine
performance and affect the emission
control system.
Switching Between E85 and
Gasoline
We do not recommend repeatedly
alternating between E85 and gasoline. If
you switch from using E85 to gasoline, or
from gasoline to E85, add as much fuel as
possible, at least half a tank. Drive your
vehicle immediately for a minimum of 5 mi
(8 km)
to allow it to adapt to the change
in ethanol concentration. If you use E85
exclusively, we recommend that you fill
the fuel tank with regular unleaded
gasoline at each scheduled oil change.
FUEL FILLER FUNNEL
LOCATION
The fuel filler funnel is in the spare wheel
storage tray.
RUNNING OUT OF FUEL
Running out of fuel can cause damage not
covered by the vehicle Warranty.
177
Explorer (TUB) Canada/United States of America, enUSA, Edition date: 201711, Fourth-Printing Fuel and Refueling
Page 181 of 571

If your vehicle runs out of fuel:
•
Add a minimum of 1.3 gal (5 L) of fuel
to restart the engine.
• You may need to switch the ignition
from off to on several times after
refueling to allow the fuel system to
pump the fuel from the tank to the
engine. When restarting, cranking time
takes a few seconds longer than
normal.
Note: If your vehicle is on a steep slope,
more fuel may be required.
Filling a Portable Fuel Container WARNING:
Flow of fuel through a
fuel pump nozzle can produce static
electricity. This can cause a fire if you are
filling an ungrounded fuel container.
Use the following guidelines to avoid
electrostatic charge build-up, which can
produce a spark, when filling an
ungrounded fuel container:
• Only use an approved fuel container to
transfer fuel to your vehicle. Place the
container on the ground when filling it.
• Do not fill a fuel container when it is
inside your vehicle (including the cargo
area).
• Keep the fuel pump nozzle in contact
with the fuel container when filling it.
• Do not use a device that holds the fuel
pump nozzle lever in the fill position.
Adding Fuel From a Portable Fuel
Container WARNING:
Do not insert the nozzle
of a fuel container or an aftermarket funnel
into the fuel filler neck. This may damage
the fuel system filler neck or its seal and
cause fuel to run onto the ground. WARNING:
Do not try to pry open or
push open the capless fuel system with
foreign objects. This could damage the fuel
system and its seal and cause injury to you
or others. WARNING:
Do not dispose of fuel
in the household refuse or the public
sewage system. Use an authorized waste
disposal facility.
When refueling the vehicle fuel tank from
a fuel container, use the fuel filler funnel
included with your vehicle. See Fuel Filler
Funnel Location
(page 177).
Note: Do not use aftermarket funnels as
they may not work with the capless fuel
system and can damage it.
When refueling the vehicle fuel tank from
a fuel container, do the following:
1. Fully open the fuel filler door.
2. Fully insert the fuel filler funnel into the
fuel filler inlet. 3. Add fuel to your vehicle from the fuel
container.
4. Remove the fuel filler funnel.
178
Explorer (TUB) Canada/United States of America, enUSA, Edition date: 201711, Fourth-Printing Fuel and RefuelingE157452
Page 182 of 571

5. Fully close the fuel filler door.
6. Clean the fuel filler funnel and place it
back in your vehicle or correctly dispose
of it.
Note: Extra funnels can be purchased from
an authorized dealer if you choose to
dispose of the funnel.
REFUELING
Refueling System Overview Fuel filler door.
A
Fuel tank filler valve.
B
Fuel tank filler pipe.
C
Your vehicle does not have a fuel tank filler
cap. Left-hand side. To open the fuel
filler door, press the center rear
edge of the fuel filler door and
then release.
A
Right-hand side. To open the
fuel filler door, press the center
rear edge of the fuel filler door
and then release.
B
Left-hand side. Pull the rear of
the fuel filler door to open it.
C
Right-hand side. Pull the rear of
the fuel filler door to open it.
D
Refueling Your Vehicle WARNING: When refueling always
shut the engine off and never allow sparks
or open flames near the fuel tank filler
valve. Never smoke or use a cell phone
while refueling. Fuel vapor is extremely
hazardous under certain conditions. Avoid
inhaling excess fumes.
179
Explorer (TUB) Canada/United States of America, enUSA, Edition date: 201711, Fourth-Printing Fuel and RefuelingE267248
B
C
A E206911
AB
CD
Page 183 of 571

WARNING: The fuel system may be
under pressure. If you hear a hissing sound
near the fuel filler inlet, do not refuel until
the sound stops. Otherwise, fuel may spray
out, which could cause serious personal
injury. WARNING: Do not pry open the fuel
tank filler valve. This could damage the
fuel system. Failure to follow this
instruction could result in fire, personal
injury or death. WARNING:
Do not remove the fuel
pump nozzle from its fully inserted position
when refueling. WARNING: Stop refueling when the
fuel pump nozzle automatically shuts off
for the first time. Failure to follow this will
fill the expansion space in the fuel tank and
could lead to fuel overflowing. WARNING:
Do not overfill the fuel
tank. The pressure in an overfilled tank may
cause leakage and lead to fuel spray and
fire. WARNING:
Wait at least five
seconds before removing the fuel pump
nozzle to allow any residual fuel to drain
into the fuel tank.
1. Fully open the fuel filler door.
2. Select the correct fuel pump nozzle for
your vehicle. 3. Insert the fuel pump nozzle up to the
first notch on the nozzle A. Keep the
fuel pump nozzle resting on the fuel
tank filler pipe. 4. Hold the fuel pump nozzle in position
B when refueling. Holding the fuel
pump nozzle in position A can affect
the flow of fuel and shut off the fuel
pump nozzle before the fuel tank is full.
180
Explorer (TUB) Canada/United States of America, enUSA, Edition date: 201711, Fourth-Printing Fuel and RefuelingE139202
A E139203
A
B
Page 184 of 571

5. Operate the fuel pump nozzle within
the area shown. 6.
When you finish refueling slightly raise
the fuel pump nozzle and slowly
remove it.
7. Fully close the fuel filler door.
Do not attempt to start the engine if you
have filled the fuel tank with incorrect fuel.
Incorrect fuel use could cause damage not
covered by the vehicle Warranty. Have your
vehicle immediately checked.
Refueling System Warning (If Equipped)
If the fuel tank filler valve does not fully
close, a message could appear in the
information display. Message
Check Fuel Fill Inlet
If the message appears, do the following:
1. Stop your vehicle as soon as it is safe to do so and switch the engine off.
2. Shift into park (P) or neutral (N). 3. Apply the parking brake.
4. Fully open the fuel filler door.
5. Check the fuel tank filler valve for any
debris that may be restricting its
movement.
6. Remove any debris from the fuel tank filler valve.
7. Fully insert a fuel pump nozzle or the fuel filler funnel provided with your
vehicle into the fuel filler pipe. See
Fuel Filler Funnel Location (page
177). This action should dislodge any
debris that may be preventing the fuel
tank filler valve from fully closing.
8. Remove the fuel pump nozzle or fuel filler funnel from the fuel filler pipe.
9. Fully close the fuel filler door.
Note: The message may not immediately
reset. If the message continues to appear
and a warning lamp illuminates, have your
vehicle checked as soon as possible.
FUEL CONSUMPTION
Advertised Capacity
The advertised capacity is the maximum
amount of fuel that you can add to the fuel
tank after running out of fuel. Included in
the advertised capacity is an empty
reserve. The empty reserve is an
unspecified amount of fuel that remains
in the fuel tank when the fuel gauge
indicates empty.
Note: The amount of fuel in the empty
reserve varies and should not be relied upon
to increase driving range.
Fuel Economy
Your vehicle calculates fuel economy
figures through the trip computer average
fuel function. See
General Information
(page 105).
181
Explorer (TUB) Canada/United States of America, enUSA, Edition date: 201711, Fourth-Printing Fuel and RefuelingE206912
AB E119081