If your Ford had a Matthew McConaughey, it would be a Lincoln

Should I be worried?

I popped the hood on the Mustang today to find that the coolant was a little low. Went to top the reservoir off and found this:

Is this normal for a car with 57,000 miles? Whatever it is doesn’t have much grit to it, just flaky brown stuff. Coolant is not cloudy or discolored.


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