wat happens with just tap water in radiator of 3800?

Asked by Jan 08, 2014 at 08:28 AM about the 1998 Pontiac Grand Prix 2 Dr GT Coupe

Question type: Maintenance & Repair

3 Answers


vs distilled? Maybe some more corrosion, but nothing major...Depends on how good the tap water is. As long as you mix with the coolant 50/50 to maintain the -30 degrees freezing point.


Tap water will cause nearly instant electrolysis, rust and corrosion. Never use tap water alone, ALWAYS mix it with the manufacturer's recommended type of coolant.

1 of 1 people found this helpful.

Straight water will freeze when the weather gets cold and prevent it from starting

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