I own a 2012 Impala, and was just wondering about any preparations I need to make for it to survive. I am from Southern California but am currently attending college in Northern Idaho, so I've never really needed to prepare a car for winter until now. It's getting to about 25-26 degrees Fahrenheit in the middle of the day, and drops below 20 at night, but on Friday and Saturday, the forecast is about 10 in the day and below 0 at night. I will be flying back home to CA for Christmas break, and was curious on if there's a lot I need to do. I check up on her about every 48hrs, and I start the engine and let it run with the defrosters on both the front & back windows while I brush the snow off. I also take her for a spin if there's not too much snow on the road.