roof CHEVROLET CORVETTE 1964 Owners Manual

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