Comments by "Keit Hammleter" (@keithammleter3824) on "How To Start a Truck at 76F Below. Winter in Soviet Yakutia" video.

  1. They are gasoline engine trucks. A gasoline engine will start, if its electrics are good, no matter how cold it is - the only thing is, you have to turn it over. At really low temperatures, batteries become ineffective, and oil becomes so thick the starter-motor can't turn the engine over even if the battery can deliver enough current. That's why Caterpillar diesel tractors were made with a little rope-start gasoline engine instead of an electric starter motor. No matter how cold it is, you can always get the gasoline engine started (though I can personally vouch by experience that it can take all one's strength due to the oil). The gasoline engine shares its coolant with the diesel engine, so it warms up the diesel engine. When the diesel engine is warm enough, you can engage the pinion and start it.
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  2. In really cold conditions, multigrade oils aren't much better than traditional oils. If you plot viscosity versus temperature on a log-of-log chart, mineral oils are a straight line. A multigrade oil such as 10W-30 follows the 10 SAE line beyond a low temperature limit, and the 30 SAE line above a high temperature limit, and have a gradual transition between the two limits. So at really low temperatures, 10W30 just behaves as 30 SAE oil and gets thicker.
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  3. In Australia we have regions that go far over body temperature and have high humidity as well - so sweating becomes ineffective cooling your body. We just drink lots and lots of water continuously and take salt tablets. You gotta do what you gotta do. Somebody has to do it.
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  4. I've never seen reference to them doing it, and there's lots of stuff about life and things in Russia in the cold war era now on YouTube. They probably had more common sense. if the Soviets actually had lobbed a nuclear bomb on you, especially if it was one of their enormous hydrogen bombs, getting under a desk was not going to help you much. In other countries, there has long been a persistent rumor that the Cold War was something dreamed up by Truman and Stalin to motivate the workers in both countries to work harder, thinking they had to beat the other side, and not slacken off in reaction to World War 2 ending like the British did. If so, it certainly seems to have worked.
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