At 3600 miles, while driving on a city street, can check engine light came on plus all the other warning lights and malfunction messages about every sensor in the car, car lost power and acceleration, engine starts sometimes only. dealer diagnosis was a full tank of e85 gas, gas station does not sell that and no any other complaint of e85. did my own testing, doesn't seem like any ethanol in gas. i saved all the gas for further testing. i complained to toyota corp but they stood by and supported the dealer diagnosis. gas station insurance carrier denied the claim. even if it was e85 gas, this shouldn't have all this impact on this avalon and its computer system.