[Sforteen]

Been using E85 for years in my S14, I use a 7 Mircon fuel filter and dont let it sit with E85 over winter, in fact just burned out most of it this last weekend. I havent had any issues from using it that im aware of. I will be pulling the injectors this year and having them cleaned/ flow checked for the first time since using Ethanol.

The biggest thing i have seen with E85 is when it sits, inside my last engine you could see trace evidence of rust/ really light pitting where the oil control ring was sitting for the period of time it wasnt in use. I never did have any issues with that engine, it had a great leakdown when it was taken apart to inspect. It was 7+ years old and dealing with abuse i had never built it for.

It also had a very strange black film on the intake valves that was very sticky and hard to remove, it was very thin and just looked like carbon. Ive taken apart quite a few engines over the yeard and have only noticed this on engines that run alot of Ethanol.