
SAFETY PRECAUTIONS
WARNINGS
Do not overfill the fuel tank. The
pressure in an overfilled tank may
cause leakage and lead to fuel spray and
fire. 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. Fuels can cause serious injury or death
if misused or mishandled.
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. Fuel may contain benzene, which is a
cancer-causing agent. WARNINGS
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. Observe the following guidelines when
handling automotive fuel:
•
Extinguish all smoking materials and any
open flames before refueling your
vehicle.
• Always turn off the vehicle before
refueling.
• Automotive fuels can be harmful or fatal
if swallowed. Fuel such as gasoline is
highly toxic and if swallowed can cause
death or permanent injury. If fuel is
swallowed, call a physician immediately,
even if no symptoms are immediately
apparent. The toxic effects of fuel may
not be visible for hours. •
Avoid inhaling fuel vapors. Inhaling too
much fuel vapor of any kind 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 liquid in your eyes. If
fuel is splashed in the eyes, 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.
164
MKZ (CC9) Canada/United States of America, enUSA, First Printing Fuel and Refueling

•
Fuels can also be harmful if absorbed
through the skin. If fuel is splashed on
the skin, clothing or both, promptly
remove contaminated clothing and wash
skin thoroughly with soap and water.
Repeated or prolonged skin contact with
fuel liquid or vapor causes skin irritation.
• Be particularly careful if you are taking
Antabuse or other forms of Disulfiram for
the treatment of alcoholism. Breathing
gasoline vapors could cause an adverse
reaction, serious personal injury or
sickness. If fuel is splashed on the skin,
wash the affected areas immediately with
plenty of soap and water. Consult a
physician immediately if you experience
any adverse reactions. FUEL QUALITY
Choosing the Right Fuel We recommend regular unleaded gasoline
with a minimum pump (R+M)/2 octane rating
of 87. Some stations offer fuels posted as
regular with an octane rating below 87,
particularly in high altitude areas. We do not
recommend fuels with an octane rating
below 87. To provide improved performance,
we recommend premium fuel for severe duty
usage such as trailer tow.
Do not use any fuel other than those
recommended because they could lead to
engine damage that may not be covered by
the vehicle Warranty.Note:
Use of any fuel other than those
recommended can impair the emission
control system and cause a loss of vehicle
performance.
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.
165
MKZ (CC9) Canada/United States of America, enUSA, First Printing Fuel and RefuelingE161513

Should your vehicle shut off after a collision,
you may restart your vehicle. For vehicles
equipped with a key system:
1. Switch off the ignition.
2. Switch on the ignition.
3. Repeat Steps 1 and 2 to re-enable the
fuel pump.
For vehicles equipped with a push button
start system:
1. Press the START/STOP button to switch
off the ignition.
2. Press the brake pedal and press the START/STOP button to switch on the
ignition.
3. Remove your foot from the brake pedal and press the
START/STOP button to
switch off the ignition.
4. You can either attempt to start the engine
by pressing the brake pedal and the
START/STOP
button, or switch on the
ignition only by pressing the
START/STOP
button without pressing
the brake pedal. Both ways re-enable the
fuel system. Note:
When you try to restart your vehicle
after a fuel shutoff, the vehicle makes sure
that various systems are safe to restart.
Once your vehicle determines that the
systems are safe, then the vehicle will allow
you to restart.
Note: In the event that your vehicle does not
restart after your third attempt, contact an
authorized dealer.
JUMP STARTING THE VEHICLE WARNINGS
Batteries normally produce explosive
gases which can cause personal injury.
Therefore, do not allow flames, sparks or
lighted substances to come near the battery.
When working near the battery, always shield
your face and protect your eyes. Always
provide correct ventilation. WARNINGS
Keep batteries out of reach of children.
Batteries contain sulfuric acid. Avoid
contact with skin, eyes or clothing. Shield
your eyes when working near the battery to
protect against possible splashing of acid
solution. In case of acid contact with skin or
eyes, flush immediately with water for a
minimum of 15 minutes and get prompt
medical attention. If acid is swallowed, call a
physician immediately. Use only adequately sized cables with
insulated clamps.
Preparing Your Vehicle
Do not attempt to push-start your automatic
transmission vehicle.
Note:
Attempting to push-start a vehicle with
an automatic transmission may cause
transmission damage.
Note: Use only a 12-volt supply to start your
vehicle.
Note: Do not disconnect the battery of the
disabled vehicle as this could damage the
vehicle electrical system.
261
MKZ (CC9) Canada/United States of America, enUSA, First Printing Roadside Emergencies

Water alone, without prediluted 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.
Recycled Coolant
We do not recommend the use of recycled
coolant as an approved recycling process is
not yet available. Dispose of used engine coolant in an
appropriate manner. Follow your
community’
s regulations and standards for
recycling and disposing of automotive fluids.
Severe Climates
If you drive in extremely cold climates:
• It may be necessary to increase the
coolant concentration above 50%.
• A coolant concentration of 60% provides
improved freeze point protection.
Coolant concentrations above 60%
decrease the overheat protection
characteristics of the coolant and may
cause engine damage.
If you drive in extremely hot climates:
• It may be necessary to decrease the
coolant concentration to 40%.
• A coolant concentration of 40% provides
improved overheat protection. Coolant
concentrations below 40% decrease the
freeze and corrosion protection
characteristics of the coolant and may
cause engine damage. Vehicles driven year-round in non-extreme
climates should use prediluted coolant for
optimum cooling system and engine
protection.
Fail-Safe Cooling
Fail-safe cooling allows you to temporarily
drive your vehicle before any incremental
component damage occurs. The fail-safe
distance depends on ambient temperature,
vehicle load and terrain.
How Fail-Safe Cooling Works
If the engine begins to overheat, the coolant
temperature gauge moves toward the red
zone:
A warning lamp illuminates and a
message may appear in the
information display.
If the engine reaches a preset
over-temperature condition, the engine
automatically switches to alternating cylinder
operation. Each disabled cylinder acts as an
air pump and cools the engine.
305
MKZ (CC9) Canada/United States of America, enUSA, First Printing Maintenance