Quote:
Originally Posted by Homeslice
If your objective is to "push" hot air out the window, you'd be better served by using the Normal setting, since it pressurizes the cabin because it's drawing in outside air. On the Max setting your cabin air isn't pressurized, therefore you're not pushing as much air out the window as you could with Normal.
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The inside cabin is in no way "air tight" in any vehicle and you are always drawing in at least 10% outside air on the recirc button.
If you want to cool the cabin quickest and it's hot outside, you use the recirc function. This will make the differential temperature across the evaporator the lowest.