Engine Coolant

NOTICE: Pure coolant can be added to raise the boiling point of the coolant, but too much will affect the freezing point. Do not use a solution stronger than 70 percent, as the freeze level rises rapidly after this point. Pure coolant will freeze at -22°C (-8°F).

This vehicle was manufactured with GM Goodwrench DEX-COOL. GM Goodwrench DEX-COOL was developed to last for 240,000 km (150,000 mi) or5 years, whichever occurs first. Make sure only GM Goodwrench DEX-COOL is used when coolant is added or changed. When adding DEX-COOL to the radiator, add clean, drinkable water to the cooling system. If you use the old coolant, make sure the solution is clean and clear, and that the solution is 50/50 mixture of glycol and water.

NOTICE: Pure coolant can be added to raise the boiling point of the coolant, but too much will affect the freezing point. Do not use a solution stronger than 70 percent, as the freeze level rises rapidly after this point. Pure coolant will freeze at -22°C (-8°F).

^ Give freezing protection down to -37°C (-34°F).
^ Give boiling protection up to 129°C (260°F).
^ Protect against rust and corrosion.
^ Help keep the proper engine temperature.
^ Allow the warning lights and gauges to work correctly.