WARNING   WARNING:  Do not remove the coolant reservoir cap when the cooling system is hot. Wait 10 minutes for the cooling system to cool down. Cover the coolant reservoir cap with a thick cloth to prevent the possibility of scalding and slowly remove the cap. Failure to follow this instruction could result in personal injury.
WARNING   WARNING:  Do not put coolant in the windshield washer reservoir. If sprayed on the windshield, coolant could make it difficult to see through the windshield.
WARNING   WARNING:  Do not add coolant further than the MAX mark.

Note:   Make sure that the coolant level is between the MIN and the MAX marks on the coolant reservoir.
Note:   Coolant expands when it is hot.The level may extend beyond the MAX mark.
When the electric motor is cold, check the concentration and level of the coolant at the intervals listed in the scheduled maintenance information.   See   Scheduled Maintenance. 
Maintain coolant concentration within 48% to 50%, which equates to a freeze point between -30°F (-34°C) and -34°F (-37°C). Coolant concentration should be checked using a refractometer. We do not recommend the use of hydrometers or coolant test strips for measuring coolant concentration.
Adding Coolant
WARNING   WARNING:  Do not remove the coolant reservoir cap when the cooling system is hot. Wait 10 minutes for the cooling system to cool down. Cover the coolant reservoir cap with a thick cloth to prevent the possibility of scalding and slowly remove the cap. Failure to follow this instruction could result in personal injury.

Note:   Automotive fluids are not interchangeable. Take care not to put coolant in the windshield washer fluid reservoir or windshield washer fluid in the coolant reservoir.
Note:   Do not use stop leak pellets, cooling system sealants, or non-specified additives as they can cause damage to the electric motor cooling or heating systems. Resulting component damage may not be covered by the vehicle Warranty.
It is very important to use prediluted coolant approved to the correct specification in order to avoid plugging the small passageways in the electric motor cooling system.   See   Capacities and Specifications.  Do not mix different colors or types of coolant in your vehicle. Mixing of coolants or using an incorrect coolant may harm the electric motor or cooling system components and may not be covered by the vehicle Warranty.
Note:   If prediluted coolant is not available, use the approved concentrated coolant diluting it to 50/50 with distilled water.   See   Capacities and Specifications.  Using water that has not been deionised may contribute to deposit formation, corrosion and plugging of the small cooling system passageways.
Note:   Coolants marketed for all makes and models may not be approved to Ford specifications and may cause damage to the cooling system. Resulting component damage may not be covered by the vehicle Warranty.
If the coolant level is at or below the minimum mark, add prediluted coolant immediately.
To top up the coolant level do the following:
  1. Unscrew the cap slowly. Any pressure escapes as you unscrew the cap.
  1. Add prediluted coolant approved to the correct specification.   See   Capacities and Specifications. 
  1. Add enough prediluted coolant to reach the correct level.
  1. Replace the coolant reservoir cap, turn it clockwise until you feel a strong resistance.
  1. Check the coolant level in the coolant reservoir the next few times you drive your vehicle. If necessary, add enough prediluted coolant to bring the coolant level to the correct level.
If you have to add more than 1.1 qt (1 L) of coolant per month, have your vehicle checked as soon as possible. Operating an electric motor with a low level of coolant can result in electric motor overheating and possible electric motor damage.
Note:   During normal vehicle operation, the coolant may change color from orange to pink or light red. As long as the coolant is clear and uncontaminated, this color change does not indicate the coolant has degraded nor does it require the coolant to be drained, the system to be flushed, or the coolant to be replaced.
In case of emergency, you can add a large amount of water without coolant in order to reach a vehicle service location. In this instance, qualified personnel:
  1. Must drain the cooling system.
  1. Chemically clean the coolant system.
  1. Refill with coolant as soon as possible.
Water alone, without coolant, can cause electric motor damage from corrosion, overheating or freezing.
Do not use the following as a coolant substitute:
  • Alcohol.
  • Methanol.
  • Brine.
  • Any coolant mixed with alcohol or methanol antifreeze.
Alcohol and other liquids can cause electric motor damage from overheating or freezing.
Do not add extra inhibitors or additives to the coolant. These can be harmful and compromise the corrosion protection of the coolant.
Recycled Coolant
Ford Motor Company does not recommend the use of recycled coolant since a Ford-approved recycling process is not yet available.
Dispose of used coolant in the 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:
  • It may be necessary to increase the coolant concentration above 50%.
  • A coolant concentration of 60% provides improved freeze point protection. Coolant concentrations above 60% decrease the overheat protection characteristics of the coolant and may cause electric motor damage.
If you drive in extremely hot climates:
  • You can decrease the coolant concentration to 40%.
  • Coolant concentrations below 40% decrease the freeze and corrosion protection characteristics of the coolant and may cause electric motor damage.
Vehicles driven year-round in non-extreme climates should use prediluted coolant for optimum cooling system and electric motor protection.

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