Severe Climates; Powertrain Limiting And Protection - Ford Focus 2012 User Manual

Maintenance and Specifications
Fill your engine coolant reservoir as outlined previously in the Adding
engine coolant section.

Severe climates

If you drive in extremely cold climates:
• It may be necessary to increase the coolant concentration
above 50%.
• NEVER increase the coolant concentration above 60%.
• A coolant concentration of 60% will provide improved freeze
point protection. Increased engine coolant concentrations
above 60% will decrease the overheat protection
characteristics of the engine coolant and may cause engine
damage.
• If available, refer to the chart on the coolant container to
ensure the coolant concentration in your vehicle will provide
adequate freeze protection at the temperatures in which you
drive in the winter months.
If you drive in extremely hot climates:
• It is still necessary to maintain the coolant concentration
above 40%.
• NEVER decrease the coolant concentration below 40%.
• Decreased engine coolant concentrations below 40% will
decrease the corrosion/freeze protection characteristics of the
engine coolant and may cause engine damage.
• If available, refer to the chart on the coolant container to
ensure the coolant concentration in your vehicle will provide
adequate protection at the temperatures in which you drive.
Vehicles driven year-round in non-extreme climates should use a 50/50
mixture of engine coolant and distilled water for optimum cooling system
and engine protection.

Powertrain limiting and protection

The engine control module (ECU) is equipped with a feature called
powertrain limiting and protection (PTLP). PTLP will help protect the
engine from damage in case the engine is overheating (coolant and/or oil
temperature too hot). PTLP will automatically intervene during normal
engine operation should it determine the engine coolant and/or oil
temperatures are too hot. It does this by gradually reducing the
348
2012 Focus (foc)
Owners Guide, 2nd Printing
USA (fus)