Does the pure concentrate i added need more time to mix with what’s already in the system or safe to assume this accurate measurement?The floating balls and pointers are fairly accurate. To be absolutely sure, get three and find the two that agree.
-45F is pretty strong.
Coolant Percentage Calculator
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Southeast MichiganIt's not going to hurt anything.
Where do you live?
Got it. I also plan on watching the coolant level in the tank over the next week as I drive and topping off as needed to ensure it stays near the max lineIf you need any top off just use water for the time being. I usually set mine for 50/50 final or -34F. Never seen that cold before. -26F is the coldest I've seen here south of Chicago.