Warming car in the morning?

[N1SMOZ]

Hey guys, did a bit of searching and I've been getting mixed answers from everyone so I'm just gonna ask this long wondered question:

How long to wait before starting your car? My father always told me wait until the needle on the RPM's drops below 1000 RPM, then throw it into first and make your way.

My sisters fiancé told me last night that 30 seconds - 1 minute is all you need and that the car will warm up as you drive.

I'd assume car manufacturers acknowledge the fact that their cars will be driven in cold weather, and have technology to make it "okay" to wait 30 seconds and drive off.

As for what I've always done, I've waited about 5-10 minutes until the car is warmed up to my satisfaction and make my way. Any suggestions?


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