2003 Pontiac Montana Owner's Manual - Page 344
2003 Pontiac Montana Manual
Page 344 highlights
Engine Coolant The cooling system in your vehicle is filled with DEX-COOL@ engine coolant. This coolant is designed to remain in your vehicle for 5 years or 150,000 miles (240 000 km), whichever occurs first, if you add only DEX-COOL@ extendedlife coolant. The followingexplains your cooling system and how to add coolant when is low. If you have a problem it with engine overheating, see Engine Overheating on page 5-26. Notice: When adding coolant, it is important that you use only DEX-COOL@ (silicate-free) coolant. If coolant other than DEX-COOL@ added to the is system, premature engine, heater core or radiator corrosion may result. In addition, the engine coolant will require change sooner at 30,000miles -(50,000 km) or24 months, whichever occurs first. Damage caused by the use coolant other than of DEX-COOL@is not covered by your new vehicle warranty. A 50/50 mixture of clean, drinkable water and DEX-COOL@ coolant will: 0 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 messages and gages work as they J I IUUIU. ,h..., .lA 5-23