Long time since my last post here.
About E85 use. It takes a while to corrosion takes place. I know that because here, in Brasil, we use E100. I use it on my everyday comuter, which is a 2009 GM.
Ethanol wakes the 250 up. These engines came with 10,5:1 stock from the factory to use ethanol only. This was in early 1970´s. With carburetors!
With today´s tech, things are getting easier.
