1993 Buick Roadmaster Owner's Manual - Page 222

m L,CAUTIOP be bu 3d if you spill hot m You canparts. Coolantcontainscoolant onglycc engine ethylene burn if the engine parts are hot II and it willDon't spill coolant on a hot engine. enough. When the Luolant the coolant recovery ~ I M C or in ~ is "1 above "FULL COLD," start your vehicle. If the overheat warning continues, there's one more thing you can try. You can add the proper coolantmix directly to the radiator, but be sure the cooling system is cool before you do it. 220