If you have a car, do you let it warm up for...

A minute or two? ( before using it) I was always under the impression to do that, hot or cold temps outside, to give engine a moment to run. Then once my friend did it too..she said, Im just giving it a minute to warm up ( her dad is a mechanic). But I see many just start it and go in one second. 🤔

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Majorlatency · M

Absolutely, maybe 30 seconds or so in the summer heat and a couple of minutes in the winter. I appreciate new lubricant technology has minimized the need but it does take a little time (longer when cold) for the oil to pressurize and coat all the bearings, lifters etc in the engine.
That and regular oil and filter changes prolong an engines operational life..