1995 Oldsmobile Silhouette Owner's Manual - Page 282
1995 Oldsmobile Silhouette Manual
Page 282 highlights
Engine Coolant The following explainsyour cooling system and how to add coolant when it is low. If you have a problem with engine overheating, see "Engine Overheating" in the Index. The propercoolant for your Oldsmobile will: 0 0 Give freezing protection down to -34°F (-37°C). Give boiling protection up to 262 O ( 128" C). F Protect against rust and corrosion. Help keep the proper engine temperature. Let the warning lights work as they should. 0 0 What to Use Use a mixture of one-half clean 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. Use GM Engine Coolant Supplement (sealer) with any 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 your engine mix, could overheat and be badly damaged. The repair cost wouldn't be covered your by warranty. Too much water in the can freeze mix and crack the engine, radiator, heater core and other parts. 6-22