FORD 1998 Mustang - Manual (Page 139)

Change your engine coolant according to the
appropriate schedule listed in the Scheduled
Maintenance 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
additives in your vehicle. These additives may harm
your engine cooling system. The use of an improper
coolant may void your 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.
For vehicles with green coolant, 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
139