[tirebird]

Peter, you're correct. Right now, there are 17 and possibly more different blends of gasoline depending upon air pollution ratings, altitude, season, and location, for different areas of the nation. In California, for example, the gas we have in the Bay Area is different than the gas people in other areas of Northern California get. Plus, the gas I get in Reno cannot be legally sold in Sacramento, or Monterey, or Oakland. So, by limiting the blends to six, the refineries can be more efficient and hopefully bring up the supply. That's the theory. I'm not sure reality will match theory.