It sounds like the mix/blend of fuel being distributed in some areas of the country is potentially higher than the mandated 10% max blend, which can lead to problems.
I can't think of anyone in the club off-hand who has had a fuel related failure or repair, but something to be aware of it looks like.
Though the media is ignoring it, one can easily find many stories on BMW (BMWG.DE) blogs relating similar problems with fuel systems damaged by the use of ethanol. Certainly that was the case with Christi Jordan and her 2007 Mini. For weeks it was difficult to start; Moritz BMW in Arlington, Tex., inspected it and found severe carbon buildup inside the engine. On her second trip to the mechanics they decided to test the ethanol content of Christi's fuel and found it was much higher than the federally mandated limit of 10%. This time the fuel pump had been destroyed by the ethanol. The repair bill came to $1,200: As in all cases where vehicles are damaged by ethanol, legally the factory warranty no longer applied.
Jim Keppler, Moritz's fixed operations director, said he's had at least 10 other cases of ethanol poisoning in Minis over the past six months. Christi was one of the lucky ones; Moritz covered her repairs. But there's no telling how many motorists across the nation have had to pay for fuel pumps, or fuel systems, that ethanol damaged. Most were probably unaware of the real culprit behind the breakdown, because virtually no repair shop tests the level of ethanol in the gasoline when these fuel system problems occur.
http://www.businessweek.com/lifestyle/c ... 058678.htm