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Not to nitpick but using a block heater is generally less energy wasteful than not. Of course it depends on how much gas you save vs how many KWH you use and the cost of those KWH.
You can calculate the cost benefit fairly easily. Even if it's more expensive you can feel good that it's reducing emissions.
I'm lucky to have very cheap, clean electricity here in BC so I can blast away with the block heaters.
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Vortex generators are old tech. My new and improved vortex alternators are unstoppable.
"It’s easy to explain how rockets work but explaining the aerodynamics of a wing takes a rocket scientist.
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