Mine only does it on a hill, which is what it should do, even on a slight grade. @GeoUCF14 does it do it all the time or only when pulling out on a hill?
http://pure-gas.org/extensions/map.html
This shows where there are ethanol free gas stations unfortunately the only one near me (irwin, pa)won't let you fill your vehicle they have it labeled as "off road use only"