Direct Injection engines may have slightly longer cold crank times than that of port fuel injected engines. Direct Injection systems run at higher pressures and the mechanical pump on the engine (driven off the cam) must build up the required pressure before the first injection event occurs (DI runs required around 2000+ psi fuel pressure compared to 40-60 psi for port injection).
Following are typical DI engine crank times using gasoline:
If the temperature is below -22°F (-30°C), the recommendation is to perform an assisted start (such as with the use of a block heater).