Thank you!!Doesnt hurt it to let it run for a few minutes after starting. Although with modern oils the need to warm it up isnt really there like it was back in the day, even if its below freezing, provided you dont go WOT. But i usually let it idle till the head temp gets 120 or more, 175 before hammering it.
You should know that when the head temp is 175 the oil is still going to be much colder. it takes about twice as long as the coolant for the oil to come up to temperature and you really shouldn't drive hard until it does.Doesnt hurt it to let it run for a few minutes after starting. Although with modern oils the need to warm it up isnt really there like it was back in the day, even if its below freezing, provided you dont go WOT. But i usually let it idle till the head temp gets 120 or more, 175 before hammering it.
You're honestly doing more harm than good. The most engine wear happens while the oil is cold, and the oil is going to stay cold a lot longer when idling. it's also running richer, introducing excessive fuel and more wear from that as well. You're much better off driving gently until the oil is up to temp.I let the car warm up for at least 10 mins when its cold out. If I don't the trans is very clunky and does not like to go into gear. I'll wait until the oil temp is hits "normal" before driving.