I'm plumbing my new car for E85, I got in a hurry to finish the car so I reused some of the existing hose on the car, it has ben around six years since it was last raced is what I was told by the former owner. It was ran on straight methanol so I assumed () all the SS lines where TFE,Teflon, lined but it turns out one of them was neopreme lined, it leaks I replaced it with a new neopreme line that I had the fittings and hose to make it run in stock I need to order some more TFE fittings for the SS teflon lined hoses I have in stock,I will probally replace all of the SS hoses in the fuel system unless I hear that you can use the neopreme with E85 okay Are any of you using E85 using neopreme hoses with good luck or not