Cooling System Precautions

CAUTION: Coolant must be recovered in a suitable, clean container for reuse. If coolant is contaminated, it must be recycled or disposed of correctly.

WARNING: Never remove pressure relief cap while engine is operating or when cooling system is hot. Failure to follow these instructions can result in damage to cooling system or engine, or personal injury. To avoid scalding hot coolant or steam blown out of degas bottle when removing pressure relief cap, wait until engine cools, then wrap a thick cloth around pressure relief cap and turn it slowly. Step back while pressure is released from cooling system. When all pressure has been released, still using cloth, turn and remove pressure relief cap.

Some vehicle cooling systems are filled with Motorcraft Premium Engine Coolant VC-4-A (in Oregon VC-5, in Canada CXC-10) or equivalent meeting Ford specification ESE-M97B44-A (Green color). Other vehicles are filled with Motorcraft Premium Gold Engine Coolant VC-7-A or equivalent meeting Ford specification WSS-M97B51-A1 (Yellow color). Always fill cooling system with same coolant that is present in system. Do not mix coolant types. Addition of Motorcraft Cooling System Stop Leak Pellets, VC-6, darkens Motorcraft Premium Gold Engine Coolant from Yellow to Golden Tan. When adding engine coolant, use a 50/50 mixture of engine coolant and clean, drinkable water. Do not add/mix Orange-colored Motorcraft Speciality Orange Engine Coolant VC-2 or equivalent meeting Ford specification WSS-M97B44-D. Mixing coolants may degrade 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. Do not mix with recycled coolant unless it meets requirements of Ford specification ESE-M97B44-A or WSS-M97B51-A1. Not all coolant recycling processes meet these Ford specifications. Use of such coolants can harm engine and cooling system components.