Thread: '98 E320 Coolant change--Distilled or tap water??
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Old 02-17-2004, 09:55 PM
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MikeTangas MikeTangas is offline
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Location: So. Cal
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Tap water can be "hard" or heavily mineralized. This wll leave deposits in the cooling system. The water supply at my home in California is very hard. I started using Prestone Battery and Radiator water. You can find it in gallon jugs at your local PepBoys/AutoZone/McParts store. Basically purified, mineral free water. The cooling systems on both MB's are clean and free of scale after using this bottled water for a couple years.
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