FORD 2012 Focus Electric - Manual (Page 333)

Unscrew the cap slowly. Any pressure will escape as you unscrew the cap.
Add prediluted coolant meeting the Ford specification. See the technical
specifications chart in the Capacities and Specifications chapter for
more information.
Whenever coolant has been added, the coolant level in the coolant
reservoir should be checked the next few times you drive the vehicle. If
necessary, add enough prediluted coolant to bring the coolant level to
the proper level.
Recycled coolant
Ford Motor Company does NOT recommend the use of recycled coolant
since a Ford-approved recycling process is not yet available.
Used coolant should be disposed of in an appropriate manner.
Follow your community’s regulations and standards for recycling and
disposing of automotive fluids.
Severe climates
If you drive in extremely cold climates:
Note: It may be necessary to have an authorized Ford dealer increase
the coolant concentration above 50%.
Note: A coolant concentration of 60% will provide improved freeze point
protection. Increased coolant concentrations above 60% will decrease the
overheat protection characteristics of the coolant and may cause damage.
If you drive in extremely hot climates:
Note: It may be necessary to have an authorized Ford dealer decrease
the coolant concentration to 40%.
Note: A coolant concentration of 40% will provide improved overheat
protection. Decreased coolant concentrations below 40% will decrease
the corrosion/freeze protection characteristics of the coolant and may
cause damage.
Vehicles driven year-round in non-extreme climates should use
prediluted coolant meeting the Ford specification for optimum cooling
system protection.
Maintenance and Specifications 333
2012 Focus Electric Vehicle (fob)
Owners Guide gf, 1st Printing
USA (fus)