This vehicle uses only: GM Goodwrench® DEX-COOL® which was developed to last for 240 000 km (150,000 mi) or 5 years, whichever occurs first. Follow the instructions in Draining and Filling Cooling System. Make sure only GM Goodwrench® DEX-COOL® (silicate-free) or Havoline® DEX-COOL® are used when coolant is added or changed.
A 50/50 mixture of DEX-COOL® and water will provide the following protection:
| 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. |