Ford 1997 Contour Manual page 190

If you must remove the coolant recovery cap, follow these steps
to avoid personal injury:
Before you remove the cap, turn the engine off and let it
1.
cool.
When the engine is cool, wrap a thick cloth around the cap.
2.
Slowly turn cap counterclockwise to the first stop.
Step back while the pressure releases.
3.
When you are sure that all the pressure has been released,
4.
use the cloth to press the cap down, turn it counterclockwise,
and remove it.
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. Ford
Premium Engine Coolant is an optimized formula that will
protect all metals and rubber elastomers used in Ford cooling
systems for 4 years or 50,000 miles (80,000 km).
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 cooling system. The use of an improper
coolant may void the warranty of your vehicle's engine cooling
system.
Recycled engine coolant
Ford Motor Company recommends that Ford and
Lincoln-Mercury dealers use recycled engine coolant produced
by Ford-approved processes. Not all coolant recycling processes
produce coolant which meets Ford specification ESE-M97B44-A,
and use of such coolant may harm engine and cooling system
components.
Maintenance and Care
193