1997 Chevrolet S10 Pickup Owner's Manual - Page 213

How to,Add Csolsrnt to the Coolant Recovery Tank I you haven't found a problem yet, but the coolmt level f isn't at ADD, add a :SO/SO mixture.of clean wnrer (prefer&bly .distilled):and DEX-CC)OL@(siljcate-frm) antifreeze at the coolant recovery tank. (See "Engine Coolant" in the Index for more information.) NOTICE: In cold weather, water can freeze and crack.the engine, radiator, heatercore and ather parts. Use the recommended coolant and the proper coolant mix. r- Adding only plain water to your cooling system can be da-ngerous. Plain water, some other or liquid likealcohol, can boil beforethe proper coolant mix win. Your vehicle's coolant warning. system -isset.for the.pr0pe.r coolant mix. With plain wateror the wrong-mix, your engine conld ,gettoo hQt buty.ou wouldn't get the overheat warning. Your engine could catchfire and you or others could be burned. Use a 50/50 mix of clean water ana DEX=COOL@ coolant.