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Only use oils certified for gasoline
engines by the American Petroleum
Institute (API). An oil with this
trademark symbol conforms to the
current engine and emission system
protection standards and fuel
economy requirements of the
International Lubricants Specification
Advisory Council (ILSAC), comprised
of U.S. and Japanese automobile
manufacturers.
1. Remove the filler cap.
2. Add engine oil that meets the Ford
specifications. See Capacities
and Specifications (page 327).
3. Replace the filler cap. Turn it until
you feel a strong resistance.
OIL CHANGE INDICATOR
RESET
To reset the oil monitoring system
after an oil change, See General
Information (page 101).
ENGINE COOLANT CHECK
Checking the Engine Coolant
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
436).
Note: Make sure that the level is
between the MIN and MAX marks on
the coolant reservoir.
MKZ (CC9)
Maintenance
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 degrees (-34ºC) and
-34ºF (-37ºC).
Note: For best results, coolant
concentration should be tested with a
refractometer such as Rotunda tool
300-ROB75240 available from your
authorized dealer. Ford does 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
scalding liquids released from a hot
cooling system can burn you badly.
Also, you can be burned if you spill
coolant on hot engine parts.
270
WARNINGS
Do not add engine coolant when
the engine is hot. Steam and
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