I filled up e85 at three locations and this was the best one I could find in town. 75 percent ethanol. If you want I can purchase ignite or something along those lines to get me to 80 percent. The car runs well, I only did a few pulls. I was able to get two or three 70-80 percent throttle runs and it's good, I tried a few WOT runs and they all kicked the car into limp and misfired. I turned it off and on and re did the WOT and the same thing.