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Author Topic: M91 Radiator Question  (Read 1570 times)

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Re: M91 Radiator Question
« on: January 10, 2021, 07:45:12 pm »
That engine really doesn't need coolant unless it is working hard.

You can run it for an hour and it will not get too warm even with no coolant.

If you have antifreeze in it you can leave it if you want to. Distilled or tap water will cause corrosion over time. The aluminum will likely deteriorate first.
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