Probably a silly question... but how do I know if my truck runs the E-85? I have never seen a toyota that has a badge that clearly says "flex fuel E85" like some chevy's. Just curious. a Station right by my house just started carrying the stuff, and it's about 30 cents cheaper than regular. I have a 2010 4x2 Crewmax 5.7. My manual does not say, just describes both engines. Any help is appreciated.