Checking Engine Coolant - Ford 2000 E-150 Owner's Manual

Maintenance and care
Do not put washer fluid in the engine coolant reservoir. Washer
fluid placed in the cooling system may harm engine and cooling
system components.
ENGINE COOLANT

Checking engine coolant

Your engine's cooling system has been factory-filled with a 50/50 mixture
of distilled water and Ford Premium Engine Coolant E2FZ-19549-AA (in
Canada, Motorcraft CXC-10), or an equivalent premium engine coolant
that meets Ford specification ESE-M97B44-A.
A 50/50 mixture of distilled water and Ford Premium Engine Coolant
provides:
maximum cooling system efficiency.
freeze protection down to -36° C (-34° F).
boiling protection up to 129° C (265° F).
protection against rust and other forms of corrosion.
an accurate temperature readout from the engine coolant
gauge.
The engine coolant must be maintained at the correct fluid level
and concentration to work properly. If the engine coolant fluid
level and concentration is not maintained correctly, damage to
the engine and cooling system may result.
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