Is it nessecary to warm up the transmission from a cold start?
I do the "keeping it under 2500rpm" trick that many on here do too. If its really cold weather, and starting the car after a couple days sitting there...I usually circle my block first to get the fluids warmed up before hitting the main roads.
THe only thing is I read an article where it said when you warm up the car, it will shorten the lifespan of your engine. Is that true or a myth?