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comment Timing Chain vs. Timing Belt
If chains didn't stretch, they wouldn't need tensions. Metal bushings on chains stretch widening the gaps between the rollers. This isn't a problem as the sprocket will wear with the chain and things will fit fine for many years and thousands of miles. But what's important is one can measure the gap between the rollers on the timing chain to predict when the chain needs replacing. And after enough stretch, a timing chain might have some slack and make noise, indicating it needs replacing. With a timing belt, things often still look fine just before a catastrophic failure.
comment Should I pull my wipers away from the windshield when parked during a winter storm?
It seems ridiculous to me - opinion; "if your car is parked... before you drive it" - facts; "In some it slides off" - fact "Having the wipers...get in the East" - fact "If you have them...the negative kind" - fact "I think that people... (the sheep theory)" - opinion "Well, there you have my opinion" - fact @Paulster2, don't confuse fact vs opinion with fact vs fiction. There's actually very little opinion in his comment, though the facts he presented are not cited in any way and may very well be false. But you asked him to back up opinion with facts and he already did...
comment Should I pull my wipers away from the windshield when parked during a winter storm?
North Dakota and MN most of my life... We know snow and cold weather. It's not rare to see people doing this, but it's not the majority and I've never felt the need to do it myself. Occasionally freezing rain has caused the wipers to freeze to the windshield, but if you're adept with a scraper you can break the ice without damaging the rubber wiperblade. I'd suspect the majority of people doing this are "not from around here" and bringing habits from warmer climates; but I've no way to verify that.
comment Is it possible to harm your car by giving someone a boost?
Connecting jumper cables in reverse will probably damage one or both of your batteries, most likely the battery in the dead car as the good car will have it's alternator running. Other components may or may not have diode protection, but if they do, fuses will not blow. Fuses blow due to high current across the fuse. Reversing 12v and Gnd could cause this in circuits lacking reverse bias protection. Circuits that are protected by diodes should cause no current, meaning no fuses blown. So if you do blow a fuse after reversing +/-, you've probably ruined something else, or gotten very lucky.
comment How do I mix up my own windshield washing liquid for low temperatures?
You shouldn't need 100% empty, just enough to reach your freeze point. Making up numbers, lets say a 10% mix of antifreeze to fluid protects to -20C. A 20% mix might protect to -30C. If you pour a 10% mix into a partially full tank, you might end up with something like a 5% mixture and get maybe -10C. If there's just a splash at the bottom, it shouldn't make a difference. That it's different brands is what made me question your diligence. Maybe one brand has a poor mix, but they all can't. And I've never heeded brands and it's much colder here. Sounds like you're doing everything right.