1993 Chevrolet Suburban Owner's Manual - Page 243

antifreezeatthecoolantrecoverytank.(See"Coolant"intheIndexformore informationaboutthepropercoolantmix.) Addingonlyplainwatertoyourcoolingsystemcanbedangerous. Plain water, or someotherliquidlikealcohol,canboilbeforethe propercoolantmixwill. Your vehicle'scoolantwarningsystemisset or thewrongmix,your forthepropercoolantmix.Withplainwater engine could gettoohot but you wouldn't get the overheat warning. Your enginecould catch fireandyou or others could beburned. Use a 50150 mix of clean water and a proper antifreeze. I I NOTICE In cold weather, water can freeze andcracktheengine.radiator,heater I coreandotherparts.Use the recommendedcoolant. I 1 L. k ' 1 ::. CAUTION I You canbeburned if youspillcoolantonhotengineparts.Coolant containsethyleneglycol and it willburn if theengineparts are hot enough.Don'tspillcoolant on a hotengine. When the coolant in the coolant recovery is at or above vehicle. COLD, start your - PO206 I = 5-1 2