If I do not have enough distilled water for coolant mix, can I temporarily use tap water?

Asked by Willer May 23, 2015 at 12:33 PM about the 2002 Toyota Tundra V8 Limited 4 Door Extended Cab RWD

Question type: Maintenance & Repair

I am adding coolant to my new radiator, realize I have only about 1/3 gallon of distilled
water for the 50/50 coolant/water mixture, and there's no way to get to the store. If I
complete the mixture with tap water, should I sometime soon empty the radiator and re-do
the 50/50 mixture with distilled water? Thanks for answers.

1 Answer

Thema_459 answered 9 years ago

No, distilled water has no hard water properties, which both city and well water have. I would say just drive it without being filled up if its not a long distance, just wat h the temp gauge. But this depends on the distance.

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