FORD 2010 Fusion Hybrid v.2 - Manual (Page 281)

Checking engine coolant
The concentration and level of
engine coolant should be checked at
the intervals listed in scheduled
maintenance information. The
coolant concentration should be
maintained at 50/50 coolant and
distilled water, which equates to a
freeze point of -34°F (-36°C).
Coolant concentration testing is
possible with a hydrometer or
antifreeze tester. The level of
coolant should be maintained at the
FULL COLD level or within the
COLD FILL RANGE in the coolant
reservoir. If the level falls below, add
coolant per the instructions in the Adding engine coolant section. When
the engine is cold, check the level of engine coolant in the reservoir.
Checking motor/electronics (M/E) coolant
The M/E coolant reservoir is located
at the rear of the engine
compartment. Refer to the following
engine coolant sections for all
information, instructions and
warnings related to cooling systems.
The two systems use the same
coolant and operate similarly, with
the Motor and Electronics system
generally operating at a lower
temperature and pressure. The fluid
levels in both reservoirs need to be maintained. When the engine is cold,
check the level of M/E coolant in the reservoir. The coolant should be at
the FULL COLD level as shown on the side of the coolant reservoir.
Factory fill and coolant specifications
Your vehicle was factory-filled with a 50/50 engine coolant and water
concentration. If the concentration of coolant falls below 40% or above
60%, the engine parts could become damaged or not work properly. A
50/50 mixture of coolant and water provides the following:
• Freeze protection down to -34°F (-36°C).
• Boiling protection up to 265°F (129°C).
Maintenance and Specifications
281
2010 Fusion Hybrid (hfv)
Owners Guide, 2nd Printing
USA (fus)