Mercury Sable 1998 Owner's Manual page 136

Maintenance and care
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.
Change your engine coolant according to the
appropriate schedule listed in the "Service Guide".
Before adding engine coolant, check the color of the
coolant in your vehicle.
For vehicles with green coolant, use Ford
Premium Cooling System Fluid E2FZ-19549–AA (in
Canada, Motorcraft CXC-8–B) or an equivalent
premium engine coolant that meets Ford
specification ESE-M97B44–A.
Do not add orange coolant or recycled coolant
to your vehicle originally equipped with
conventional green coolant .
For vehicles with orange coolant, use Ford
Extended Life Engine Coolant F6AZ-19544–AA or a
DEX-COOL equivalent that meets Ford
specification WSS-M97B44–D.
Do not add conventional green coolant or
recycled coolant to your vehicle originally
equipped with orange coolant.
Do not use alcohol or methanol antifreeze or any
engine coolants mixed with alcohol or methanol
antifreeze. Do not use supplemental coolant
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