1997 Oldsmobile Achieva Owner's Manual - Page 214
1997 Oldsmobile Achieva Manual
Page 214 highlights
A CAUTION: Adding only plain water to your cooling system can be dangerous. Plain water, or some other liquid like alcohol, can boil before the proper coolant mixwill. Your vehicle's coolant warning system is set for the proper coolant With mix. plain wateror the wrong mix, your engine could get too hot butyou wouldn't get the overheat warning. Your engine could catch fire you or and others couldbe burned. Use a 50/50 mix of clean water and DEX-COOL@ coolant. I NOTICE: In cold weather, water can freeze and crack the So engine, radiator, heater core and other parts. use the recommended coolant. A CAUTION: You can be burned you spill coolant hot if on engine parts. Coolant contains ethylene glycol and itwill burn if the engine parts are hot enough. Don't spill coolant on hot engine. a 5-18