Remember that the Mopar Coolants have Sodium Silicates, Sodiium Benzoate, and Sodium Tetraborate and Sulfates in it. Check the label and you will see what I am saying. The sodium and sulfates cook out and leave sodium deposits in your cooling system and radiator.....including your heater core. QuantumBlue HP Gold is much better! However, your question about distilled is correct. Use distilled water if the Mopar coolant is concentrate. If it is premixed, then just pour it in.Hello,
This is my first post to the forum. I bought The Mopar Antifreeze Coolant 68048953AB to add to the coolant reservoir bottle. Do I need to mix with distilled water or just pour the contents of the antifreeze to the reservoir? Thanks in advance.