On a hot day and traveling in a car, which method of keeping the occupants comfortable with the A/C is more energy and fuel efficient?

  • Set the thermostat to a lower temperature and keep fan speed to the lowest setting

  • Set the thermostat to a slightly higher temperature and compensate by setting the fan to a higher speed so you can feel cool enough with the breeze

  • ostsjoe@lemmy.world
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    9 months ago

    Also the alternator absolutely takes more power from the engine in proportion to how much energy it’s putting out.