Cooling System Care
Your C hevrolet engine cooling system is equipped with a 180 0 thermostat and is designed to operate on permanent type
(ethyle n e glycol) anti·freeze. Non· Perm anent type coolants are not recommended since
t hey are not sat isfactory for year around use and may not effect ive ly inhibit corrosio n of the engine cool· ing system when used with the quality of water found in some a reas.
If the a nti·freeze was installed at the factory or if it meets the require ments of Gener a l Motors Standard GIVe 1899-1'v1 whi ch contains adequate corros ion pro
t ec tion, i t may be left in the cooling system for 24 months or 24,000 miles, which eve r occurs first.
C h eck th e
coolant leve l regularly and add water or permanent anti-f reeze as required to maintain supply tank h alf fulL Concentration of coolant should b e to 0 0 F . or b e low to insure sufficient corros ion protection.
Drain and Rush cooling system ever y 24 months. F ill with mixture o f p erma n ent type anti- fr eeze (G1\1 1899-1\'[ or equivalent) and wa te r to provide proper concentrati o n of coolant.
Each Call have your C h evrolet dealer inspect the
cooling syst e m to insure that all connections are leakproof and that the anti-freeze content will pro
vide adequate protection in cold weather.
NOTE: Your Corvette has on aluminum radiator and supply tank. Therefore, when adding anti-freeze, rust inhibitors or cleaners, make ceria in that they are sale lor use with aluminum radiators .
JI
Check the front of the radiator core occasionally for
insects and leaves. Flush them out from the back
sid e of the radiator using a water hose and city water
pressure.
RADIATOR CAP
The Corvette cooling system is equipped with a 13 lb. pressure cap. To remove the cap, carefully turn ~ turn to allow exces s system pressure to escape, then turn the cap all the way off. If the engine is
ov erh eated, wait for several minutes before removing
the
radiator cap.
Tire
Care
To enjoy maximum service from your tires, keep
them inflated to the pressures recommended on
page
46.
Regular Corvette tires should not be used for ex
treme vehicle operation. Special purpose tires are
available,
if needed, from major tire manufacturers. DRAINING
AND FILLING
THE COOLING SYSTEM
I. Open the drain cock at the bottom of the
radiator.
2. Remove the drain plug located on each side of the engine block just above the oil pan and be· hind the spark plug wire shields. 3. Replace the engine drain plugs and close the
radiator drain cock before refilling the radiator.
4.
To refill , add coolant until supply tank remains
one -half full. Then start engine and add coolant as necessary to maintain normal one-half- full level in supply tank. Recheck when cool and fill to
normal level.
Rotate tires
as shown every
6000 miles to distribute wear
. over all five tires. This will help you to obtain maxi
mum service from your tires.
