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Post #2874808

2026-03-27 10:17 UTC

@dimitribouniol@mastodon.social @finestructure@mastodon.social Driving the exact same route with the same car in the same conditions slower uses less energy, that’s simple physics? And hereby I hand over to our resident physicist 😀

Replies (2)

  • @fmarini@mastodon.social 2026-03-27 10:26

    @helge@mastodon.social @dimitribouniol@mastodon.social @finestructure@mastodon.social well, there is a lower limit; it’s a matter or torque, RPMs, transmission ratio, speed, … The sweet spot for my Hyundai i30N is cruising around 65/75 km/h in sixth gear, for example. At 130 km/h I consume roughly double. But regarding the topic at hand, cruising at 100 on the highway instead of 130 or, worse, 180/200 will absolutely consume less gas per km. At those speeds, air resistance is the biggest consumption hit, so…

    Open ##2874809

  • @helge@mastodon.social @finestructure@mastodon.social For a given amount of time, sure, but for a given distance, if you use just a tiny bit more energy to get there significantly faster, then you use less overall, hence better fuel economy, right? Same logic applies to our Mac — sure the efficiency cores always win, but if you “must” use your super (lol) cores at all, better use them for the smallest duration of time you need if you want to get the most battery life 😛

    Open ##2874820