E85 fuel economy

[MikeNH]

What's your thoughts on running pure gas? (Non oxy)

You might see slightly better mpg over E10 but that's about it.

[Rawyzf]

You might see slightly better mpg over E10 but that's about it.

Any harm in running it on these trucks? I ran it when I was cat less in the G8 and 97X-Aero. I thought I read it was hard on the cats.

[MikeNH]

It's gasoline. No harm. Ethanol is added to help with emissions, nothing more.