I have never been a fan of "Additives" in general. Oil or fuel.
Fuel and oil companies come up with specific additive packages for oil and fuel.
Adding you "Own" additive only throws off the package the companies were trying to acheive.
I would say unless your a chemist, leave it alone.
I have been running E85 for over a year and a half and never added anything to my fuel. I have never had an issue.
You know the old saying "If it ain't broke, don't fix it!"
:thumbsup:I am a chemist and that's my view on it as well.