F 250 4WD HD Pickup V8-460 7.5L VIN G EFI (1997)
Coolant: Mechanical Specifications
Service refill recommendations are 50/50 mixture of water and permanent coolant/antifreeze such as Ford Premium Cooling System Fluid
E2FZ-19549-AA or B or equivalent meeting specification ESE-M97B44-A plus 1.41 (1.5 qts) of Heavy Duty Cooling System Additive FW-15 or
equivalent meeting Ford specification ESN-M99B 169-A.
Minimum acceptable coolant/water concentration is 45 percent antifreeze to 55 percent water. Maximum acceptable is 60 percent coolant to 40 percent
water. Use only a hand-held refractometer such as Rotunda Battery/Antifreeze Tester 014-R1060 or equivalent to check concentration.
In an emergency, ordinary tap water with a low alkali content can be used provided the system is drained and flushed and filled with the specified
coolant/water mixture as soon as possible. Use only if temperature is above 0° C (32° F).
The recommended quantity of coolant additive when refilling the entire cooling system is 1.4 liters (1-1/2 quarts). Refreshing the coolant mixture with an
additional 237 ml (3 oz) of Motorcraft FW- 15, or equivalent, each 15,000 miles (24,000 km) or 12 months is recommended.
