FORD 2002 Focus v.2 - Manual (Page 280)

Maintenance and Specifications
280
5. Fill the coolant reservoir slowly
with the proper coolant mixture
(see above), to within the "cold fill
range" or the "cold full" level on the
reservoir. If you removed the
radiator cap in an overflow system,
fill the radiator until the coolant is
visible and radiator is almost full.
6. Replace the cap. Turn until
tightly installed. (Cap must be
tightly installed to prevent coolant
loss.) After any coolant has been
added, check the coolant
concentration (see Checking
Engine Coolant section). If the
concentration is not 50/50
(protection to Ć34 ° F/Ć36 ° C), drain
some coolant and adjust the
concentration. It may take several
drains and additions to obtain a
50/50 coolant concentration.
Whenever coolant has been added,
the coolant level in the coolant
reservoir should be checked the
next few times you drive the
vehicle. If necessary, add enough
50/50 concentration of engine
coolant and distilled water to bring
the liquid level to the proper level.
If you have to add more than 1.0
liter (1.0 quart) of engine coolant
per month, have your dealer check
the engine cooling system. Your
cooling system may have a leak.
Operating an engine with a low
level of coolant can result in engine
overheating and possible engine
damage.