It wasnt froze solid but resembled. A slush type matter, kind of like those certain cheap bottled waters..
Those freeze to a slush as well.. Dont know why neither.
Funny/ odd thing about this oil slush was as it returned to normal, the slush hung at the bottom, even as i turned and flipped it around it would always sink (as opposed to water where it would float.)
Dont know the science behind that neither
If Life was logical, the men would ride side saddle - Paul Harvey