![background image](/i/lincoln/149983/lincoln-mkc-2015/h/lincoln-mkc-2015-289.png)
Note:
Do not use stop leak pellets, cooling
system sealants, or additives as they can
cause damage to the engine cooling or
heating systems. This damage would not be
covered under your vehicle’s warranty.
Note:
During normal vehicle operation, the
engine coolant may change color from
orange to pink or light red. As long as the
engine coolant is clear and uncontaminated,
this color change does not indicate the
engine coolant has degraded nor does it
require the engine coolant to be drained,
the system to be flushed, or the engine
coolant to be replaced.
When the engine is cold, check the
concentration and level of the engine coolant
at the intervals listed in the scheduled
maintenance information. See
Scheduled
Maintenance
(page 461).
Note:
Make sure that the level is between
the MIN and MAX marks on the coolant
reservoir.
Note:
Coolant expands when it is hot. The
level may extend beyond the MAX mark.
Note:
If the level is at the MIN mark, below
the MIN mark, or empty, add coolant
immediately. See
Adding Engine Coolant
in this chapter.
The coolant concentration should be
maintained within 48% to 50%, which
equates to a freeze point between -30°F
(-34°C) and -34°F (-37°C).
Note:
For best results, coolant concentration
should be tested with a refractometer such
as Robinair Coolant and Battery
Refractometer 75240. We do not
recommend the use of hydrometers or
coolant test strips for measuring coolant
concentrations.
Note:
Automotive fluids are not
interchangeable. Do not use engine coolant
or antifreeze or windshield washer fluid
outside of its specified function and vehicle
location.
Adding Engine Coolant
•
Do not mix different colors or types of
coolant in your vehicle. Make sure the
correct coolant is used. Mixing of engine
coolants may harm your engine’s cooling
system. The use of an improper coolant
may harm engine and cooling system
components and may void the warranty.
Use prediluted engine coolant meeting
the Ford specification. See
Capacities
and Specifications
(page 338).
•
In case of emergency, a large amount of
water without engine coolant may be
added in order to reach a vehicle service
location. In this instance, the cooling
system must be drained, chemically
cleaned with Motorcraft Premium Cooling
System Flush, and refilled with engine
coolant as soon as possible. Water alone
(without engine coolant) can cause
engine damage from corrosion,
overheating or freezing.
286
Maintenance