[dodson914]

Originally Posted by shnomac77

Actually the information that I provided is right off of GM's site.......
Im going to take GM's word over yours


"Do not over-idle when starting. Even at -18°C most cars only require 15 to 30 seconds of idling before being driven. The engine and drivetrain warm up better when your car is in motion. However, drive gently until they are warm".


Here is another tid bit from "Car talk"...


What's your MPG when you're idling? It's negative! You're actually burning gas... and going nowhere.

If you're sitting outside a tattoo parlor waiting for your grandmother, and you know it's going to take her a good 15 minutes to get that new Komodo dragon tattooed on her left butt cheek, turn off your engine. You're just burning money. Some people have heard a myth that it takes more gas to start a car than to run it. So they use that as an excuse to leave a car idling. It's complete B.S. If you're stationary for more than a couple of minutes, shut it off, and save gas.

This tip also applies to warming up the car. Unless it's below freezing, cars don't need to be warmed up at all. Driving them gently is the best warm up there is. If it's 25 degrees out, you might want to let it warm up for 30 seconds. If it's 10 degrees out, warm it up for a minute. If it's -10 degrees out, move somewhere warmer.

If I waited for the oil to get to 180 in my truck I'd literally be idling for 45-60 minutes every day. Maybe longer if it's cold.