If it is not petroleum based, it is...what? water based? Alcohol based? Vegetable oil based? But if it is not petroleum or veggie-oil based, it is water soluable (this includes citrus cleaners).
Water can freeze, and cause corrosion.
Alcohol is difficult to freeze, but readily absorbs water (see above).
Veggie oil....depends what it is mixed with.
Website says it is "synthetic". This is a bit of a catch-all--Mobile 1 is "synthetic", but it is petroleum based. Until you know what it is actually made of, we are all spitting in the wind.