Severe Climates - Lincoln 2015 MKZ HYBRID Owner's Manual

Whenever you add coolant, check the
coolant level in the inverter system controller
coolant reservoir the next few times you
drive the vehicle. If necessary, add enough
prediluted coolant to bring the inverter
system controller coolant level to the proper
level.
Recycled Engine Coolant
Ford Motor Company does not recommend
the use of recycled engine coolant since a
Ford-approved recycling process is not yet
available.
Used engine coolant should be disposed of
in an appropriate manner. Follow your
community's regulations and standards for
recycling and disposing of automotive fluids.
MKZ Hybrid (), enUSA
Maintenance

Severe Climates

If you drive in extremely cold climates:
• It may be necessary to have an
authorized Ford dealer increase the
coolant concentration above 50%.
• A coolant concentration of 60% will
provide improved freeze point protection.
Engine coolant concentrations above
60% will decrease the overheat
protection characteristics of the engine
coolant and may cause engine damage.
If you drive in extremely hot climates:
• It may be necessary to have an
authorized Ford dealer decrease the
coolant concentration to 40%.
• A coolant concentration of 40% will
provide improved overheat protection.
Engine coolant concentrations below
40% will decrease the corrosion and
freeze protection characteristics of the
engine coolant and may cause engine
damage.
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Vehicles driven year-round in non-extreme
climates should use prediluted coolant
meeting the Ford specification for optimum
cooling system and engine protection.
What You Should Know About Fail-Safe
Cooling
If the engine coolant supply is depleted, this
feature allows the vehicle to be driven
temporarily before incremental component
damage is incurred. The "fail-safe" distance
depends on ambient temperatures, vehicle
load and terrain.
How Fail-Safe Cooling Works
If the engine begins to overheat, the engine
coolant temperature gauge will move to the
red (hot) area and:
The coolant temperature warning
light will illuminate.
The service engine soon indicator
will illuminate.