1993 Oldsmobile Achieva Owner's Manual - Page 235

Adding Coolant If you use animproper coolant mix, your engine could overheat and be badly damaged. The repai cost wouldn't be cowred by your w r a t .Too much water in the arny mix can freeze and crackthe engine, radiator, heater core and To Check Coolant: When your engine iscold, the coolant level should be at FULL COLD, or a little higher. To Add Coolant: If you need more coolant, add the proper mix at the surgetank, but only when the engine iscool. lA Turning the surgetank pressure cap when the engine and radiator are hot can allow ~ t m and scalding liquids to blow n it and burn you badly. Never tllm : surge tank pressure cap-ev a little-whenthe el ne and radiator are hot. 233