1997 Oldsmobile Cutlass Owner's Manual - Page 240
1997 Oldsmobile Cutlass Manual
Page 240 highlights
What to Use Use amixture of one-half clean water (preferably distilled) and one-halfDEX-COOL" coolant which won't damage aluminum parts. If you use this mixture, you don't need to add anything else. NOTICE: If you use an improper coolant i , your engine mx could overheatand be badly damaged. The repair cost wouldn't be covered by your warranty. Too much water in the can freeze mix and crack the engine,radiator, heater core and other parts. If you have to add coolant more than times a year, four have your retailer check your cooling system. Adding only plain water to your cooling system can be dangerous. Plain water, some other or liquid like alcohol, can boil before proper the coolant mix will. Your vehicle's coolant warning system is set the proper coolant mix. With for plain wateror the wrongmix, your engine could get too hot you wouldn't get the overheat but warning. Your engine could catch and you or fire others could be burned. a 50/50 mix of clean Use water and DEX-COOL coolant. TM NOTICE: I I I you use the proper coolant, don't have to f you add extra inhibitors or additives which claim to improve the system. These can be harmful.