Section 03-03: Engine Cooling
1993 Mustang Workshop Manual
ADJUSTMENTS

Maintaining Coolant Level

Check coolant level in the coolant recovery reservoir at least once a month.

With a cold engine, the level must be maintained at or above the FULL COLD mark.

At normal engine operating temperature, the coolant level should be at the FULL HOT mark. If coolant level in the reservoir is less than the above indicated levels, a 50/50 mixture of Premium Cooling System Fluid E2FZ-19549-AA (ESE-M97B44-A and ESE-M97B43-A) (In Canada Motorcraft CXC-8-B) or equivalent and water should be added to the reservoir to the specified levels.

NOTE: Combined coolant/windshield washer reservoirs should be filled through the small opening at the top of the bottle. If reservoir is empty, allow engine to cool and add specified 50/50 coolant mixture to the base of the filler neck in the radiator and to the recovery reservoir as specified above.