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a 50/50 mixture of correct antifreeze and water, or the already premixed antifreeze.

Use ONLY coolant that is designed for GM cars. Do NOT use the green colored or tinted antifreeze since this will gunk up your system and cause real problems like overheating or thermostat issues. I think the correct tint of the antifreeze should be orange, pink, or clear.

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16y ago

What else can I help you with?