Over the past couple of months the coolant level in my 2011 F-150 has been decreasing. It started back in October and I currently live in North Dakota, where it is -20 right now. I didn't think it was normal for the coolant level to drop at all, let alone in freezing temps. As I said earlier the coolant level dropped just below the cold line in October, now it is half-way between the cold and fill lines. I always thought the coolant level had to be at the max level. Should I have this checked or is this normal? Thanks

 

nevermind...i'm an idiot