E-85 tune for gas engine?

[Power Hungry]

In going through the parts lists on a FFV vs. a non-FFV, I'm hard pressed to find any difference in components. The service manager at one of our local Ford dealers also indicated to me that there isn't any significant difference in the builds of the vehicles or in replacement parts. Now this could mean that all replacement parts are FFV compatible while there are differences during manufacturing, or it could mean that there really isn't any difference.

The biggest concern is obviously going to be the fuel tank, fuel pump, and fuel lines, since the engines (including injectors) are identical. In investigating replacement components for these, I've not noticed any separation in part numbers for FFV and non-FFV vehicles.

I am continuing to investigate any possible differences in manufacturing and further validate my findings, but so far there doesn't seem to be any real reason why you can't run E85 in late model vehicles, so long as the tuning supports it.