Pontiac 2006 manual Engine Coolant, What to Use

Engine Coolant

Your vehicle was factory-filled with a coolant developed to last for five years or 100,000 miles (160 000 km), whichever occurs first. When coolant is added or changed, use DEX-COOL®coolant.

The following explains your cooling system and how to add coolant when it is low. If you have a problem with engine overheating, see Engine Overheating on page 5-28.

A 50/50 mixture of clean, drinkable water and DEX-COOL®coolant will:

•Give freezing protection down to −34°F ( −37°C).

•Give boiling protection up to 265°F (129°C).

•Protect against rust and corrosion.

•Help keep the proper engine temperature.

•Let the warning lights and gages work as they should.

Notice: Using coolant other than DEX-COOL®may cause premature engine, heater core or radiator corrosion. In addition, the engine coolant may require changing sooner, at 30,000 miles (50 000 km) or 24 months, whichever occurs first. Any repairs would not be covered by your warranty. Always use DEX-COOL®(silicate-free) coolant in your vehicle.

What to Use

Use a mixture of one-half clean, drinkable water and one-half DEX-COOL®coolant which will not damage aluminum parts. If you use this coolant mixture, you do not need to add anything else.

{CAUTION:

Adding only plain water to your cooling system can be dangerous. Plain water, or some other liquid such as alcohol, can boil before the proper coolant mixture will. Your vehicle’s coolant warning system is set for the proper coolant mixture. With plain water or the wrong mixture, your engine could get too hot but you would not get the overheat warning. Your engine could catch fire and you or others could be burned. Use a 50/50 mixture of clean, drinkable water and DEX-COOL®coolant.

Notice: If you use an improper coolant mixture, your engine could overheat and be badly damaged. The repair cost would not be covered by your warranty. Too much water in the mixture can freeze and crack the engine, radiator, heater core and other parts.

5-26