Assuming there is no frost (always amazes me how sidetracked we get on that tangent), get in, start it, let the idle slow down a bit and go. Last winter, the longest this process took was 3 minutes. That was at -28f, cold soaked, and no block heater plugged in. (Granted, this in a well maintained modern vehicle).
With frost, start it, get out and scrape, then go. The heat helps the scraping.
And there are plenty of times there is no frost and a cold start happens.
Idling for 15 minutes because it's better for the vehicle is bunk. Better for the operator to not be cold, sure.
With frost, start it, get out and scrape, then go. The heat helps the scraping.
And there are plenty of times there is no frost and a cold start happens.
Idling for 15 minutes because it's better for the vehicle is bunk. Better for the operator to not be cold, sure.