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•
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 fuel stations offer fuels posted
as regular unleaded gasoline with an octane
rating below 87, particularly in high altitude
areas. We do not recommend fuels with an
octane rating below 87.
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.
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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.
Fuel Freshness Mode (If Equipped)
This helps keep the fuel system functional
and the fuel fresh.
If you mainly use your vehicle in electric
power mode without refueling, the gasoline
in the fuel tank may become stale due to
aging. Stale gasoline can damage the
engine and fuel system.
Your vehicle automatically switches to fuel
freshness mode if you do not refuel your
vehicle with fresh fuel within an 18-month
period. Fuel freshness mode protects your
vehicle from potential engine and fuel system
damage caused by using stale fuel.
Note: If you do not add new fuel during an
18-month period, fuel freshness mode will
use fuel until approximately 1.2 gal (4.5 L) of
fuel remains in the fuel tank. During fuel freshness mode:
•
The information display will indicate fuel
freshness mode is active.
• The vehicle will only run in hybrid mode.
EV Now mode will not be available.
• Most of the plug-in power will be stored
until fuel freshness mode is completed.
Note: EV Now mode resumes when less than
1.2 gal (4.5 L) of fuel remains in the fuel tank.
Note: When the fuel level is less than
one-quarter full, refueling your vehicle will
end fuel freshness mode.
Note: We recommend you use a fuel
stabilizer if you use less than a full tank of
fuel during an 18-month period.
RUNNING OUT OF FUEL
Avoid running out of fuel because this
situation may have an adverse effect on
vehicle components.
If you have run out of fuel: •
To start the vehicle with a keyless
ignition, just start the engine. Crank time
will be longer than usual.
• Normally, adding 1 gallon (3.8 liters) of
fuel is enough to restart the vehicle. If the
vehicle is out of fuel and on a steep
grade, more than 1 gallon (3.8 liters) may
be required.
• The service engine soon indicator may
come on.
Refilling With a Portable Fuel Container WARNINGS
Do not insert the nozzle of portable
fuel containers or aftermarket funnels
into the capless fuel system. This could
damage the fuel system and its seal, and
may cause fuel to run onto the ground
instead of filling the tank, which could result
in serious personal injury. 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. 177
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ENGINE SPECIFICATIONS
2.0L ATK iVCT Engine
Engine
122
Cubic inches
Minimum 87 octane
Required fuel
1-3-4-2
Firing order
Coil on plug (COP)
Ignition system
12.3:1
Compression ratio
0.051 in. ± 0.002 in. (1.3 mm ± 0.05 mm)
Spark plug gap
354
MKZ Hybrid (CC9) Hybrid Electric Vehicle (HEV), Canada/United States of America, enUSA, First Printing Capacities and Specifications