Hey yall, a gas station near me just started selling E-85 ethanol gasoline at a current price of 2.75, with regular running 3.29 a gallon. Anyway after looking through my manual for my '07 XE I found that our truck can take the newer E-85 gasoline. I am hesitant to try it and had a few questions because saving 50 cents a gallon is a HUGE difference! Anyway first can you add E-85 to a half full tank of 87 octane without problems, or should I try to run the tank nearly out before filling up, and second, has anyone tried E-85 in our trucks? Any problems? Any gas mileage difference?