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Was curious what sort of range impacts others observe. Today I had the highest "outside temperature" impact that I have ever seen at +7.9 miles and outside temperature was topping off at 100潞. Interestingly, the +7.9 miles range impact was only slightly to the right of the center with plenty of room to move further right. How hot does it have to get to max the outside temperature impact?

With 100潞 outside, we had the A/C running on the inside. The climate control impact offset the outside temperature impact to a net -3 miles. Oh well guess we could have turned off the A/C and arrived in a pool of sweat.
 

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So the numbers are meaningless except to show relative impact?

I wouldn't think hot temperatures would decrease range much. Sure, more energy is required for cooling, but then the air itself is less dense, and overcoming aerodynamic drag is the largest single expenditure of energy for a vehicle. Driving at elevation or in hot temperatures thins the air, making it easier for the car to punch a hole in it.
 

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I tend to be very conservative about using A/C & Heater, so that is not a major factor in the range whether I'm driving at 5C(41F) or 30C(86F) in ambient temperature. Curiously though, I've observed about 25% better range at the hotter end compared to the colder end, all other conditions being similar.
 
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