Everyone is obsessed about these "cold flow tests". Having good "cold flow" properties is a double edged sword. In order for the oil to "flow" better, more solvent is added to the oil. But as more solvent is added, it deducts from the oils other properties like film strength. This is why AMSOIL offers a dominator product, in which its #1 focus is just that: film strength. Its designed to be used in a machine that is kept in a heated trailer overnight, rebuilt ever season, etc.
SO WHAT OIL DO YOU RUN? Your OE has spent tens of thousands of dollars designing a formula, im going to assume they have done the correct leg work