chevrolet Workshop Repair Guides

Chevrolet Workshop Service and Repair Manuals

Cooling System|Testing and Inspection > < Cooling System|Capacity Specifications|Page 3281
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Coolant: Description and Operation

DESCRIPTION

This vehicle was manufactured with GM Goodwrench DEX-COOL. DEX-COOL was developed to last for 240,000 km (150,000 miles) or 5 years
whichever occurs first. The manufacture recommends that use of GM Goodwrench DEX-COOL when coolant is added or changed.

MIXTURE

A 50/50 mixture of ethylene glycol (DEX-COOL) and water will provide the following:

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Freezing protection down to -37°C (-34°F).

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Boiling protection up to 129°C (265°F).

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Help keep the proper engine temperature.

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Rust and corrosion protection.

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Allow the sensors and switches to operate as designed.

NOTE:  Do not use solution stronger than 70% antifreeze. Pure anti-freeze will freeze at -22°C (-8O°F).

Cooling System|Testing and Inspection > < Cooling System|Capacity Specifications|Page 3281