Adding Engine Coolant - Ford 1998 Mustang Owner's Manual

Maintenance and care

Adding engine coolant

Do not put engine coolant in the container
for the windshield washer fluid.
Do not mix conventional green coolant, orange
coolant or recycled coolants together in your
vehicle. Use only the type of coolant that your
vehicle was originally equipped with. If you are
unsure which type of coolant your vehicle
requires, contact your local dealer.
If sprayed on the windshield, engine coolant could
make it difficult to see through the windshield.
When the engine is cool, add a 50/50 mixture of
engine coolant and water to the engine coolant
reservoir—DO NOT ADD DIRECTLY TO THE
RADIATOR. Add straight water only in an emergency,
but you should replace it with a 50/50 mixture of
coolant and distilled water as soon as possible.
Check the coolant level in the coolant reservoir the
next few times you drive the vehicle. If necessary, add
enough of a 50/50 mixture of coolant and water to
bring the liquid level to the fill line on the reservoir.
Never remove the coolant reservoir cap
while the engine is running or hot.
If you must remove the coolant reservoir cap, follow
these steps to avoid personal injury:
1. Before you remove the cap, turn the engine off
and let it cool.
2. When the engine is cool, wrap a thick cloth
around the cap. Slowly turn cap counterclockwise
until pressure begins to release.
3. Step back while the pressure releases.
4. When you are sure that all the pressure has been
released, use the cloth to turn it counterclockwise
and remove the cap.
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