• SaveTheTuaHawk@lemmy.ca
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    11 days ago

    Zero point in this when Doug Ford and Danny Smith are increasing highway speed limits 10-20%, increasing fuel use 20-30%.

    Cars are most efficient at 90kmhr. This is why 55mph was the US standard in the 70s.

    • kbal@fedia.io
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      11 days ago

      I was into fuel efficiency for a while, yes I too was fooled until about 2007, so I can tell you that gasoline-powered cars are more efficient at 90km/h than they are at 100 but typically they’re most efficient somewhere below 60km/h. Probably lower, depends on gear ratios and such. That they went with 55 instead of 40 is just because nobody would have accepted the latter. In fact they largely didn’t accept 55 either in the long run, as we know. But such technical details don’t matter a whole lot at this point because fossil fuels should not be burned at all by anyone.

  • kbal@fedia.io
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    11 days ago

    Fuel efficiency standards: Demonstrating the Jevons paradox and distracting everyone from the urgent necessity to stop burning fossil fuels, since 1975.