Getting the AC fixed was in prep for next weekend. I actually drove back home with the blower on high, windows down and sunroof open. It's been a beautiful mid-80s day with a good breeze blowing. Mostly cloudy on the way home.
Another reason for not using the AC is that I have leaf chafe blowing out of my defroster vents and leaves stuck inside my dash vents. I need to remove the blower and resister next week and clean everything out again. And that's just from leaves that have blown from the back yard next door. Prevailing winds don't blow my leaves toward the cars.
I have frequently heard 40 degrees referenced, but it was always in the context of 40 degrees below the ambient temperature. If it's 60 outside, it's easier to hit 40 than if it's 90. I don't know which method is the correct one.
