In the limitations section there's a graph showing min ambient temp of -54˚C from sea level to 20.000 feet, from 20.000 to 37.000 min temp decreases to -75˚C and this is absolute min ambient temp. Max temp at sea level is +54˚.
Below "Engine Operating Limits" this note is added:
During cold day starts, oil pressure may exceed 95 PSIG. The pressure will decrease as oil temperature increases. Engine speed should not be advanced above idle until oil pressure no longer exceeds 95 PSIG. Once the oil pressure is below 95 PSIG, engine speed can be advanced but should not exceed 40% N1 until the engine fuel temperature is within normal limits, ≥4°C.
Hope this helps.
CP