That is the question. Summer edition.
My testing method was driving the speed limit (55 to 50 MPH / 88 to 80 KMH) using the Long Island Expressway i495 from exit 43 to exit 15 to exit 50. The temperatures was around 95 to 99 degrees. Air conditioning was set at three.
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https://www.youtube.com/watch?v=Ukn0bpTdOcM