Ethanol corrosion test

[flyguy]

Had these aluminum pieces in California gasoline with ethanol for over six months. The smaller piece is flashing material and the other is aircraft metal. I scratched the aircraft piece to make it more vulnerable. No discernible corrosion that I can see. Part of my safety program as I have been running my -85 on car gas for almost 7 years now. I keep checking things just in case a problem comes up.
DC