Tystevens wrote:
I know the 'old school' guys will disagree, but there is really no reason to start and idle a modern diesel. Like others have mentioned, just drive easy until the needle moves -- for most of us, that means just normal driving out of the subdivision onto the surface streets. I can't speak for others, but my Duramax warmed up pretty much just as fast as a gasser, with warm air coming out within 5 minutes or so of starting.
My diesel started many times after being parked outside in sub-zero temps overnight. As long as you have decent fuel (with the right additives for the climate, which will be added if you buy fuel from a good source), there really is no need for block heaters and all of this unless you are looking at some truly frigid conditions.
No disagreement from this old phart. Even the old diesels didn't like to be crunk up cold and idled. Unburned fuel would wash the oil film from the cylinder walls and could cause accelerated wear. Same with the newer diesels. I never warm a vehicle more than a few seconds before driving easy as it warms up. It warms up faster driving it.
