1995 Buick LeSabre Owner's Manual - Page 219

Engine Coolant The following explains your cooling system and how to add coolant when it is low. If you have a problem with in engine overheating, see "Engine Overheating" the Index. The proper coolant for your Buick will: 0 A CAUTION: Give freezing protection down to -34°F (-37°C) . Give boiling protection up to 262°F (128°C) . Protect against rust and corrosion. Help keep the proper engine temperature. Let the warning lights work as they should. 0 0 0 0 What to Use Use a mixture of one-half clearz water (preferably distilled) and one-half antifreeze that meets "GM Specification 1825M," which won't damage aluminum parts. You can also use a recycled coolant conforming to GM Specification 1825M with a complete coolant flush and refill. If you use this mixture, you don't need to add anything else. NOTICE: If you use an improper coolant mix, your engine could overheat andbe badly damaged. The repair cost wouldn't be covered by your warranty. Too much waterin the mix can freeze and crack theengine, radiator, heater core and other parts. 6-17