I seemed to recall 0.1% GDP for every $1, but that seemed too low, and that's why I inquired. I thought you had a better handle on the actual number.
The cost to consumers is more than just gasoline. Chemicals, power, and plastics are also big factors. Anyway, I was quite surprised when I looked at that WTIC chart tonight, so I had to delve a bit further into the possible ramifications.