pre-mixed coolant isn't supposed to be added with water (may it be distilled or not), unless during emergency situations. if you are going to replace the tap water, use pre-mixed coolant until the radiator is full.
You would want to drain it first before replacing the coolant.
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Originally Posted by jeDi13
pre-mixed coolant isn't supposed to be added with water (may it be distilled or not), unless during emergency situations. if you are going to replace the tap water, use pre-mixed coolant until the radiator is full.
You would want to drain it first before replacing the coolant. Its not just a matter of topping up.
Last edited by EVO-V; August 8th, 2015 at 07:39 PM.