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Coolant Recovery Tank (Typical)
ENGINE COOLING SYSTEM
The recovery type cooling system is standard
on all vehicles covered by this manual. The
coolant expands with rising temperature and the
overflow is collected in the recovery tank . When
the system temperature drops, the coolant is
drawn back into the radiator . The cooling sys-
tem has been filled at the factory with a high-
quality, inhibited, year-around coolant that
meets the standards of General Motors Specifi-
cation 1899-M . This coolant solution provides
freezing protection to -20° F . (--29° C.)
[-35°F . (-37 °C.) in Canada], and it was for-
mulated to be used without replacement for
Location of Radiator Cap
SERVICING DETAILS
8 2
period specified in Maintenance Schedule folder,
providing the proper concentration of coolant
is maintained .
COOLING SYSTEM CARE
Checking Coolant Level
Open right front access cover. Do not remove
radiator cap to check coolant level, but check
visually in the "see thru" coolant recovery tank
as frequently as necessary . Level should be at
the "COLD" mark on the recovery tank when
the system is cold ; and at the "HOT" mark at
normal operating temperature . Add a 50/50
mixture of high-quality ethylene glycol anti-
freeze and water to the recovery tank for coolant
additions . If frequent additions are required, see
your dealer for a cooling system check.
NOTE:
If recommended quality antifreeze is
used, supplemental inhibitors or additives claim-
ing to provide increased cooling capability are
not necessary . They may be detrimental to the
efficient operation of the system, and represent
an unnecessary operating expense .
Annual Service
The cooling system should be checked each
year as follows
1 . Wash radiator cap and filler neck with clean
water .
2 . Check coolant for proper level and freeze
protection.
Radiator Drain Plug
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