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Don't start it if you want to do the best for the car.
Starting the car, to idle up to temp, or a short drive, does way more for your anxiety than it does for the car.
Also, pull the battery and put it on a tender! It will leach hydrogen gas.
Normally, this is vented by the vent tube, but since the car is stationary, the tube won't extract and dispel the gas. It poses a slight risk of expolsion/fire, but more likely will combine with moisture in the air and make a mild acid which can mar the paint and start corrosion in out-of-the-way places - several important electrical connections in the enclosed area surrounding the battery.
The DME will reset itself within the first few miles of driving in the spring, and a reset, once in a while isn't a bad thing at all.
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