1997 Chevrolet Cavalier Owner's Manual - Page 224
1997 Chevrolet Cavalier Manual
Page 224 highlights
How to Add Coolant to the Coolant Surge Tank If you haven't founda problem yet, but the coolant level isn't at the FULL COLD mark, add a 50/50 mixture of clean water (preferably distilled) and DEX-COOL coolant at the coolant surgetank, but be sure the cooling system, including thecoolant surge tankpressure cap, is cool before you do it. (See "Engine Coolant" in the Index for more information.) TM ! i', Steam andscalding liquidsfrom a hot cooling system canblow out and burn badly. They you are underpressure, and if you turn the coolant surge tank pressure cap even a little they can comeout at high speed. Neverturn the cap when the cooling system, including the coolant surge tank pressure cap, hot. Wait is for thecooling systemand coolant surge tank pressure cap tocool if you ever have to turn the pressure cap. -- --