They way I have always looked at cold starting is, motor parts always have a slight coating of oil on them. Hot or cold. When you start a motor cold, that thin coating will protect it until the oil gets flowing. Oil works like it's supposed to when it reaches operating temp, 160-200f. So by letting your motor warm up for a few minutes before you drive off, is better then starting, waiting 10 seconds, and driving away. Really cold oil might take minutes to get completely pumped thru your motor. As soon as the motor starts, it's giving off heat to the oil, coolant and metal parts. If you stress those parts before they warm up, gaskets tend to tear and you have leaks.Like they guy said in his video, if you live in a cold temp climate, get a block heater of some sort. It will make everybody happy.,,,