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ON THE BOTTOM OF THE RADIATOR THERE IS A SPIGOT TO DRAIN THE RADIATOR TURN THIS TILL IT OPENS UP AND YOURE RADIATOR FLUID WILL DRAIN RIGHT OUT THE BOTTOM THEN TO FILL MIX ANTIFREEZE AND WATER 50/50 UNLESS ALREADY PREMIXED THEN FILL START CAR UP AND CONTINUE FILLING TILL RADIATOR IS FULL MAKE SHURE U CLOSE THE SPIGGOT IN THE BOTTOM OF THE READIATOR FIRST BEFORE FILLING

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Q: How do you drain and fill the radiator on a 1991 Grand Prix?
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