1995 Pontiac Grand Prix Owner's Manual - Page 232

Engine Coolant The following explains your cooling system and howto add coolant when is low. If you have a problem with it engine overheating or if you need to add coolant to your radiator, see "Engine Overheating" the Index. in The proper coolant for your Pontiac will: Give freezing protection down to -34°F (-37°C). Give boiling protection up to 262°F (128" C ) . 0 Protect against rust and corrosion. Help keep the proper engine temperature. 0 Let the warning lights work as they should. What toUse clean water (preferably Use a mixture of one-half distilled) and one-half antifreeze that meets "GM Specification 1825-M," which won't damage aluminum parts. You can also use a recycled coolant conforming to GM Specification 1825-M with a complete coolant flush and refill. Use GM Engine Coolant Supplement (sealer) with any complete coolant flush and refill. you use If this mixture, you don't need to add anything else. I NOTICE: If you use an improper coolantmix, your engine could overheat and badly damaged. The be repair cost wouldn't be coveredby your warranty. Too much water in the can freeze mix and crack the engine, radiator, heater core and other parts. 6-19