FORD 2001 F-150 v.1 - Manual (Page 156)

If the engine coolant has not been checked at the recommended interval,
the engine coolant reservoir may become low or empty. If the reservoir is
low or empty, add engine coolant to the reservoir. Refer to Adding
engine coolant in this chapter.
Automotive fluids are not interchangeable; do not use engine
coolant, antifreeze or windshield washer fluid outside of its
specified function and vehicle location.
Adding engine coolant
Use only Ford Premium Engine Coolant E2FZ-19549-AA (in
Canada, Motorcraft CXC-8-B) or a premium engine coolant that
meets Ford specification ESE-M97B44-A.
• DO NOT USE Ford Extended Life Engine Coolant
F6AZ-19544-AA (orange in color).
• DO NOT USE a DEX-COOL௡ engine coolant or an equivalent
engine coolant that meets Ford specification WSS-M97B44-D.
• DO NOT USE alcohol or methanol antifreeze or any engine
coolants mixed with alcohol or methanol antifreeze.
• DO NOT USE supplemental coolant additives in your vehicle.
These additives may harm your engine’s cooling system.
• DO NOT MIX recycled coolant and conventional coolant
together in your vehicle. Mixing of engine coolants may harm
your engine’s cooling system.
• The use of an improper coolant may harm engine and cooling
system components and may void the warranty of your vehicle’s
engine cooling system. If you are unsure which type of coolant
your vehicle requires, contact your local dealer.
To avoid scalding hot steam or coolant from being released from
the engine cooling system, never remove the pressure relief cap
from the engine coolant reservoir while the engine is running or hot.
Failure to follow this warning may result in damage to the engine’s
cooling system and possible severe personal injury.
Maintenance and care
156