Section 03-03: Engine Cooling
1994 Mustang Workshop Manual
CLEANING AND INSPECTION

Radiator Coolant Level Check

Check coolant level in the radiator coolant recovery reservoir (8A080) 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 radiator coolant recovery reservoir is less than the above indicated levels, a 50/50 mixture of Premium Cooling System Fluid E2FZ-19549-AA or B (In Canada, Motorcraft CXC-8-B) or equivalent meeting Ford specifications ESE-M97B44-A and ESE-M97B43-A and water should be added to the radiator coolant recovery reservoir to the specified levels.