Engine Cooling: Notes

NOTE: The engine cooling system is filled with Motorcraft® Orange Antifreeze/Coolant. Mixing coolant types degrades the corrosion protection of Motorcraft® Orange Antifreeze/Coolant. Do not mix coolant types. Failure to follow this instruction may result in engine or cooling system damage.

NOTE: Stop-leak style pellets/products must not be used as an additive in this engine cooling system. The addition of stop-leak style pellets/products can clog or damage the cooling system resulting in degraded cooling system performance and/or failure.

NOTE: The addition of Cooling System Stop Leak Pellets darkens the coolant.

NOTE: During normal vehicle operation, Motorcraft® Orange Antifreeze/Coolant may change color from orange to pink or light red. As long as the engine coolant is clear and uncontaminated, this color change does not indicate the engine coolant has degraded nor does it require the engine coolant to be drained, the system to be flushed, or the engine coolant to be replaced.

The cooling system consists of the:

radiator.
cooling fan motor and shroud.
degas bottle.
radiator drain valve.
coolant pump.
thermostat housing.
block heater (if equipped).

NOTE: Engine coolant provides freeze protection, boil protection, cooling efficiency and corrosion protection to the engine and cooling components. In order to obtain these protections, the engine coolant must be maintained.

When adding or topping off engine coolant:

measure the coolant concentration in the vehicle using Coolant/Battery Refractometer ROB 75240 or equivalent.
determine the concentration desired bassed on the vehicle duty cycle of extreme hot or cold operating conditions.
add/top off or adjsut the coolant as follows:
- for concentrations measured 48/52 to 50/50, use Motorcraft® Orange Antifreeze/Coolant Prediluted to maintain a coolant concentration in this same range (preeze protection down to -34°C to -37°C [-30°F to -34°F]).
- for all other concentrations, use Motorcraft® Orange Antifreeze/Coolant Concentrated and/or distilled water to get to the desired concentration.
- Refer to COOLING SYSTEM DRAINING, FILLING AND BLEEDING .
When refilling the engine coolant after a flush procedure, use a mixture of Motorcraft® Orange Antifreeze/Coolant Concentrated and distilled water to get to the desired concentration.

To maintain the integrity of the coolant and the cooling system:

add Motorcraft® Orange Antifreeze/Coolant or equivalent. Do not mix coolant types.
do not add or mix with any other type of engine coolant. Mixing coolants may degrade the coolant's corrosion protection.
Do not add alcohol, methanol, brine or any engine coolants mixed with alcohol or methanol antifreeze. These can cause engine damage from overheating or freezing.
Ford Motor Company does NOT recommend the use of recycled engine coolant in vehicles originally equipped with Motorcraft® Orange Antifreeze/ Coolant since a Ford-approved recycling process is not yet available.