I am in the process of either proving/disproving theories or just really confusing my Focus, but I am trying to find an ethanol-free gas source closer to me than Cresson to see if the ethanol does affect things as much as some claim. So far I have run two tanks of regular E-10, and two of Mid-Grade E-10, still gotta to run two tanks of Premium E-10 through her and then start the process with ethanol-free equivalents and then once all the numbers are in I'll stick with the most efficient gas for as long as I can (until the gov't screws it up)... Does anybody have a clue where I can buy ethanol-free gas in Fort Worth, Burleson, or Crowley? I also need to know this so I know where to run for gas for my classic car and the ol' lawnmower too before the ethanol starts taking it's toll on all that old metal... Thanks in advance for your help folks.