I lived most of my life in Alaska, and I learned to drive there. I have comments.
Re: Tune-ups
You should be taking care of your car anyway. In AK (and parts of the desert southwest, and probably the northern plains) it doesn’t matter if you have AAA if you break down 20 miles from the nearest cell phone signal.
Also, the reverse is also true of tire pressure…when it starts getting warm again you may need to release some pressure.
I’ve got a question about oil, though…should you use a thinner oil in winter? I always did, but does it matter? (I had an old inline-6 Nova and a Toyota Corolla, though, so for me it probably didn’t, but I mean generally.)
Re: Batteries
In extreme cold, batteries don’t last as long as they do in warm climates. (I’m guessing the frequent temperature changes have something to do with it, but I’m not a chemist.) So the “check battery” thing is doubly important.
A battery that says “60 months” on it might last over a decade in Arizona, but it pretty much won’t last longer than 60 months in Alaska.
Re: sand:
It isn’t just good for putting weight over the drive wheels, it’s also good for getting yourself unstuck if you get stuck on ice. Grit the ice with it, get some traction that way. Cat litter works better, though. Also, cat litter is good for cleaning up spills, in case your car decides to dump all of its oil or coolant on the road. Carry a bag of sand or cat litter even in a FWD or AWD car, just not as much.
Re: Block heaters:
I was car shopping and I looked at an early 90s Olds Cutlass Ciera owned by a Chinese graduate student. He’d just learned to drive the year before, and this was the first car he’d ever had anything to do with. Whoever taught him to drive didn’t bother to tell him he needed to plug in his engine heaters. I checked the oil and found coolant in it. Not that white foam that happens when you have a little bit of coolant in the oil, but a discernible mix of oil and coolant on the dipstick, like there were equal parts oil and coolant swirling around in the crank case. The radiator was full of exactly that.
It is a testament to the quality of General Motors’ engines that the thing even ran at all. And that was from just one winter of not plugging it in.
If it’s regularly getting below about 0 degrees Fahrenheit, plug it in. A lot of cars aren’t even capable of starting if it’s around -30 or colder and they aren’t plugged in.
Re: four snow tires on AWD cars:
You don’t want to mix old and new tires on an AWD car anyway, it isn’t good for the differentials.
Re: Cell phones:
Most cell phone batteries are crap in cold weather. Even if it does hold a charge don’t expect it to work for more than a couple of minutes if it’s cold. The old Motorola bricks worked great in cold weather, but I don’t think those are supported by most networks anymore.
Re: going slow:
A feather touch on the gas can get you there faster. You accelerate faster (still not very fast) if you don’t spend 3 seconds after the light turns green spinning your wheels. Also, braking in anticipation of lights changing, in order to time your arrival so you don’t have to stop (this works best with widely spaced lights and light traffic) means you don’t have to bother with that at all. If there’s a lane clear, you’ll sail past the idiot who rushed to the light, and is now spinning all four wheels trying to get started again.
And finally, re: tire chains: