Even in the worst winters, the garage rarely gets below 40 F (have temp monitor). It is attached with heated space over it.
I got this bottle in the summer from someone who bought it in the spring. It has not been below 32 F here outside so not close to freezing in the garage,
As I mentioned, I have a second bottle and it shows no signs but it is older. There may have been a formulation change that is not as stable but waiting to see what Optimum says.