BG's thingy actually integrates the fuel/water so it does not cause a problem in the system, according to their propaganda.
http://pubmemo.com/i/other-tidbits/miscellaneous/2013/bg-introduces-the-new-bg-ethanol-fuel-system-defender-service_678986.html
BG Automotive Maintenance Services: Ethanol Fuel System Defender Service
http://pubmemo.com/i/other-tidbits/miscellaneous/2013/bg-introduces-the-new-bg-ethanol-fuel-system-defender-service_678986.html
BG Automotive Maintenance Services: Ethanol Fuel System Defender Service