After about 60 seconds idling, aka allowing oil to get to all parts of the engine, that will take much longer and waste more gas than driving conservatively until it's completely warm. There was a discussion on this several years ago and basically 1 min a idle then soft driving until your needle is in it normal position.

For a person, the best warm up is often a slow jog.

-Andy


Andy W. The problem with America is stupidity. I'm not saying there should be a capital punishment for stupidity, but why don't we just take the safety labels off of everything and let the problem solve itself?