This was another extreme temp day. I went out in the early (well, 7:15) coolth to take a car to the Mac Genius of mechanics. He is a car whisperer who knows us, the vehicles, and his business. Among other things, I asked him to check the valves on our tires as there has been a spate of cracked valves on some tires.
Want to feel like a naive infant? Have your mechanic tell you that the valves in your tires are metal and contain sensors which let you know when they are low on air. I knew this, I swear. After he said it, I even recalled what the picture of the icon looks like in the manual.
He said that kind of valve almost never fails.
There was no extra charge for the education . . .