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What is the Appropriate Coolant Mix?

168 Views 3 Replies 3 Participants Last post by  Rick92040
I need to top off my coolant level (2018 R1200 GS). The owner's manual doesn't indicate an appropriate mix and the bottle of BWM coolant says to dilute as needed. So, what would be the appropriate coolant mix?
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BMW Group #82142209769 coolant is full strength. Dilution is 30 to 50% with distilled water depending on average ambient temperatures in your area.
BMW Group #82142209769 coolant is full strength. Dilution is 30 to 50% with distilled water depending on average ambient temperatures in your area.
Well, here in Northern California (not the mountains), it ranges from the low 30's to about 110-115 degrees F. However, I'll only be riding when its 110 degrees if I get caught out in the high temperature. Otherwise, the bike will stay in the garage when it gets that high. The bottle does have recommendations for 50% and 60% coolant levels. Since I'm only topping off, I doubt it really makes that much difference between 50% and 60% coolant levels.
i just added a bit of distilled water to mine.
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