Thanks Papa Bear... Interestingly enough, Motomaster Synthetic 5W-20 has a pour point of only -33°C, and a 176°C flash point. Both 5W-30 and 10W-30 have a pour point of -51°C with a 176°C flash point. 5W-50: -39°C pour point and 220°C flash point.
I've emailed CTC asking if this is all correct...