1993 Chevrolet S10 Pickup Owner's Manual - Page 228

How to Add Coolant to the Coolant Recovery Tank If youhaven'tfound a problemyet,butthecoolantlevelisn'tat or abovethe ADD mark,add a 50/50 mixture of clean water (preferablydistilled)andthe properantifreezeatthecoolantrecoverytank.(See"EngineCoolant"inthe Indexformoreinformationaboutthepropercoolantmix.) I CAUTION 4 Adding only plain water to your cooling system can be dangerous. Rain water, or someotherliquid,like alcohill, can boil before the proper coolant mix will. Your vehicle's coolant warning system is set for the proper coolant mix. With plain water, or the wrong mix, your engine could get too hot but you wouldn't get the overheat warning. Your engine could catch fire and you or others could be burned. Use 'a 5Q/M of clean wafer and a proper antifreeze. mix NOTICE In cold weather,water can freeze and crack the en1 coreandother parts. Usetherecommendedcoolan * I I CAUTION I I' You can be burned if you spill coolant on hot engine parts. Coolant b contains ethylene glycol and it wil'l burn if the engine parts are hot enough. Don't spill coolant on a hot engine. ADD mark, Whenthecoolantinthecoolantrecoverytankisatorabovethe start your vehicle. If theoverheatwarningcontinues,there'sonemorethingyoucantry. canaddthepropercoolantmixdirectlytotheradiator,butbesurethe coolingsystem is coolbeforeyou doit. You A Steamandscaldingliquidsfrom a hotcoolingsystemcanblowout andburnyoubadly.Theyareunderpressure,and ifyouturnthe radiatorpressurecap-even a little-theycancomeoutathigh speed.Neverturnthepressurecapwhenthecoolingsystem, including the radiator pressure cap, is hot. Waitforthecooling to cool ifyoueverhavetoturn systemandradiatorpressurecap thepressurecap. 5-1 2