Notice: Do not use a solution stronger than 70 percent antifreeze. Pure
antifreeze will freeze at -22°C (-8°F).
This vehicle was manufactured with GM Goodwrench DEX-COOL™.
DEX-COOL™ was developed to last for 240000 km (150000 mi)
or 5 years (whichever occurs first). Make sure only GM Goodwrench
DEX-COOL™ is used when coolant is added or changed. Follow the instructions
in
Cooling System Draining and Filling
in Engine Cooling.
A 50/50 mixture of ethylene glycol (DEX-COOL™) and water will
provide the following:
| • | Give freezing protection down to -37°C (-34°F) |
| • | Give boiling protection up to 129°C (265°F) |
| • | Protect against rust and corrosion |
| • | Help keep the proper engine temperature |
| • | Allow the sensors and switches operate as designed. |
Engine Coolant Recycling
Tools Required
GM approved Recycling System such as Pro Clean (Available in the GM
Dealer Equipment Program)
Whenever the cooling system needs maintenance or repairs, remove and
replace the coolant with qualified new coolant.
If you only drain the radiator, up to 50 percent of the used, contaminated
coolant can remain in the cooling system.
Use any of the following methods in order to remove the coolant:
| • | Use a waterless coolant evacuation system, available in the GM
Dealer Equipment program, or equivalent, that removes the used coolant. |
| • | Recover the used coolant. Store the coolant in a used coolant
holding tank. Submit the used coolant for recycling on a regular basis. |
| | Important: Do not recycle coolant on vehicles manufactured with GM Goodwrench Dex-Cool.
|
