I'm with most of the others here. I think your motives are commendable, but you're taking it way overboard. Back a generation ago, when --sigh-- I was already driving, it was a much bigger deal. We had vastly poorer quality oils (mostly Group-I basestocks) and fluids, etc. Primitive anti-freeze, even properly mixed, installed in an iron block engine was hardly a recipe for longevity. Today, unless you're living in Anchorage, you can pretty much, within reason, use the same oil year-round without a major problem.
IMO, perhaps the most important thing you can do is to monitor the tire pressures, particularly as we go from hot weather to cold. We have a pretty good temp spread here in NW FL, and you can see several psi of tire pressure just "go away" as the temps drop, and the pressure follows. Checking when going from cold to hot is important too, but IMO, less critical UNLESS you're already running at or near sidewall max, so that you might risk exceeding the max as things get hot.
Just use common sense and enjoy your car. This is the "downside" of modern cars. They've advanced light years forward as far as efficiency of maintenance -- leaving those of us who can't keep our hands off with nothing to do but check oil, install HID kits, and so forth.
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