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COOLING SYSTEM
KEM Equipment and GM Powertrain recommends the use of DEX COOL coolant
in all GM engines. A 50/50 mixture is recommended.
WARNING: Never remove the heat exchanger cap under any condition
while the engine is operating. Failure to follow these instructions could
result in damage to the cooling system, engine, or cause personal injury.
CAUTION: DO NOT add coolant or water to any engine that has
become overheated until the engine cools. Adding coolant or water to an
extremely hot engine can result in a cracked block or cylinder head.
CAUTION: DO NOT mix DEX-COOL (pink/orange colored) with
traditional (green) ethylene glycol. Refer to the mixture chart on the
container for additional antifreeze protection information. DO NOT use
alcohol or methanol antifreeze, or mix them with the specified coolant. Plain
water may be used in an emergency (except in freezing temperatures), but
replace it with the specified coolant as quickly as possible to avoid damage
to the system.
COOLANT LEVEL
Check the coolant level of the heat exchanger daily and only when the engine is
cool. Generally a good time to do this is just prior to starting the engine for the first
time each day.
Plain water may be used in an emergency and above 32 F ambient temperature,
but replace it with the specified coolant as quickly as possible to avoid freezing or
damage to the cooling system.
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